query: 1 solar day is equal to how many hours

pos: Day many other species are related to Earth's solar day and the day-night cycle. Several definitions of this universal human concept are used according to context, need and convenience. Besides the day of 24 hours (86 400 seconds), the word "day" is used for several different spans of time based on the rotation of the Earth around its axis. An important one is the solar day, defined as the time it takes for the Sun to return to its culmination point (its highest point in the sky). Because celestial orbits are not perfectly circular, and thus objects travel at different speeds

pos: Rare Earth hypothesis roughly 24 hours 38 minutes (the same as Mars's solar day); in 1 billion years, 30 hours 23 minutes. Larger secondary bodies would exert proportionally larger tidal forces that would in turn decelerate their primaries faster and potentially increase the solar day of a planet in all other respects like Earth to over 120 hours within a few billion years. This long solar day would make effective heat dissipation for organisms in the tropics and subtropics extremely difficult in a similar manner to tidal locking to a red dwarf star. Short days (high rotation speed) causes high wind speeds at

pos: Earth hours. Due to this motion, on average it takes 24 hours—a solar day—for Earth to complete a full rotation about its axis so that the Sun returns to the meridian. The orbital speed of Earth averages about , which is fast enough to travel a distance equal to Earth's diameter, about , in seven minutes, and the distance to the Moon, , in about 3.5 hours. The Moon and Earth orbit a common barycenter every 27.32 days relative to the background stars. When combined with the Earth–Moon system's common orbit around the Sun, the period of the synodic month, from

pos: Moment (time) Moment (time) A moment ("momentum") was a medieval unit of time. The movement of a shadow on a sundial covered 40 moments in a solar hour. An hour in this case means one twelfth of the period between sunrise and sunset. The length of a solar hour depended on the length of the day, which in turn varied with the season, so the length of a moment in modern seconds was not fixed, but on average, a moment corresponds to 90 seconds. A day was divided into 24 hours of both equal and unequal lengths, the former being called natural

pos: Hindu calendar "divasa" ( दिवस), has been what most Hindus traditionally use, is easy and empirical to observe, by poor and rich, with or without a clock, and it is defined as the period from one sunrise to another. The lunar day is called "tithi" (तिथि), and this is based on complicated measures of lunar movement. A lunar day or "tithi" may, for example, begin in the middle of an afternoon and end next afternoon. Both these days do not directly correspond to a mathematical measure for a day such as equal 24 hours of a solar year, a fact that the

pos: Talk TV (Philippines) 2012, a late-night newscast, Solar Nightly News; launched on July 16, 2012, a morning newscast Solar Daybreak and a noontime newscast Solar Newsday; both launched on October 1, 2012. Talk TV (Philippines) Talk TV (stylized as talkv) was an English-language all-news and talk television network in the Philippines. It is a joint venture of Southern Broadcasting Network and Solar Entertainment Corporation through Solar TV Network, Inc. It is currently available over SBN 21 on free TV. Talk TV operates 24 hours a day on cable TV and 6:00 AM - 12:00MN on SBN 21 starting October 1, 2012. Talk TV

pos: Time standard is based on the solar day, which is the period between one solar noon (passage of the real Sun across the meridian) and the next. A solar day is approximately 24 hours of mean time. Because the Earth's orbit around the sun is elliptical, and because of the obliquity of the Earth's axis relative to the plane of the orbit (the ecliptic), the apparent solar day varies a few dozen seconds above or below the mean value of 24 hours. As the variation accumulates over a few weeks, there are differences as large as 16 minutes between apparent solar time

pos: Day many other species are related to Earth's solar day and the day-night cycle. Several definitions of this universal human concept are used according to context, need and convenience. Besides the day of 24 hours (86 400 seconds), the word "day" is used for several different spans of time based on the rotation of the Earth around its axis. An important one is the solar day, defined as the time it takes for the Sun to return to its culmination point (its highest point in the sky). Because celestial orbits are not perfectly circular, and thus objects travel at different speeds

pos: Midnight Sun Game Midnight Sun Game The Midnight Sun Game is an amateur baseball game played every summer solstice at Growden Memorial Park in Fairbanks, Alaska, United States. Because the sun is out for almost 24 hours a day, the game starts at about 10:30 at night and completes around 1:30 the next morning. However, because Fairbanks's summer time zone differs by about 2 hours from local solar time, the game may not actually last until solar midnight, at about 1:53. Famous players who have appeared in the game include Tom Seaver, Dave Winfield, Terry Francona, Harold Reynolds, Jason Giambi, and Bill "Spaceman"

pos: Talk TV (Philippines) Talk TV (Philippines) Talk TV (stylized as talkv) was an English-language all-news and talk television network in the Philippines. It is a joint venture of Southern Broadcasting Network and Solar Entertainment Corporation through Solar TV Network, Inc. It is currently available over SBN 21 on free TV. Talk TV operates 24 hours a day on cable TV and 6:00 AM - 12:00MN on SBN 21 starting October 1, 2012. Talk TV conducted its test broadcast until March 31, 2011. The channel started its full broadcast on April 1, 2011. Talk TV studios is located at Solar Media Center, WCC Building,

pos: Copiapó Solar Project Copiapó Solar Project The Copiapó Solar Project is a 260 megawatt (MW) net solar thermal power project to be located near Copiapó, about 65 kilometers east of the coastal town of Caldera. The project is being developed by SolarReserve, and is scheduled to reach commercial operation in 2019. The Copiapó project will comprise two 120 megawatt (MW, 130 MW gross) solar thermal towers with up to 14 hours thermal storage, combined with 150 MW of PV. The hybrid project will deliver over 1,700 gigawatt hours (GW·h) annually, as non-intermittent baseload power, 24 hours a day. The project uses heliostat mirrors

pos: Day at various positions in their orbit, a solar day is not the same length of time throughout the orbital year. Because the Earth orbits the Sun elliptically as the Earth spins on an inclined axis, this period can be up to 7.9 seconds more than (or less than) 24 hours. In recent decades, the average length of a solar day on Earth has been about 86 400.002 seconds (24.000 000 6 hours) and there are about 365.2422 solar days in one mean tropical year. Ancient custom has a new day start at either the rising or setting of the Sun

pos: Lagna in about an average of 2 hours which makes the Lagna the fastest in movement and the second position goes to the Moon. From here we should notice that 1 day is equal to 24 hours and the Lagna successfully completes a rotation around the 12 rashis within the 24 hours (an average of 2 hours for each rashi) which also means that the Lagna completes the 27 nakshatras and 108 nakshatra padas in a day. The calculation of the Lagna is usually based on the time and place of birth when the child that the doctor has delivered begins

pos: Foucault pendulum vector diagrams rotation is inversely related to the angular velocity and the surface velocity (T = 1 day for 2 pi radians, or at the equator, 1 circumferential unit per 1 EVU = 40,075 km ÷ 1670 km/h ÷ 24 h/day = 1 day). At a given latitude the surface velocity is equal to pi times the chord length parallel to the equator per 24 hours. This is equivalent to the cosine of the latitude × 1 EVU. At the poles the surface velocity is zero since zero distance is traveled. For a given longitude the surface velocity varies from 1 EVU

pos: Solar Entertainment Corporation the National Telecommunications Commission's guidelines. However, it still continues to air as a cable channel 24 hours a day. On November 9, 2013, San Miguel Corporation's president and COO, Ramon Ang, explored the possibility of acquiring a controlling stake in Solar Entertainment Corporation in his personal capacity. However, no further announcements were made after this and Ang subsequently reached an agreement to acquire a minority stake. Solar News Channel and its partnership moved to RPN 9 on December 1, 2013, while ETC returned to SBN Channel 21 a day before. (ETC was aired on SBN-21 from 2008 to 2011 then

pos: Day star (assumed to be fixed), is called a "stellar day". This period of rotation is about 4 minutes less than 24 hours (23 hours 56 minutes and 4.1 seconds) and there are about 366.2422 stellar days in one mean tropical year (one stellar day more than the number of solar days). Other planets and moons have stellar and solar days of different lengths from Earth's. A day, in the sense of daytime that is distinguished from night-time, is commonly defined as the period during which sunlight directly reaches the ground, assuming that there are no local obstacles. The length of

pos: Solar hybrid power systems of solar thermal and solar PV plants at a site. Also to optimise the cost of power, generation can be from the cheaper solar PV plant (33% generation) during the day light whereas the rest of the time in a day is from the solar thermal storage plant (67% generation from Solar power tower and parabolic trough types) for meeting 24 hours base load operation. When solar thermal storage plant is forced to idle due to lack of sunlight locally during cloudy days in monsoon season, it is also possible to consume (similar to a lesser efficient, huge capacity and

pos: How to Live on 24 Hours a Day How to Live on 24 Hours a Day How to Live on 24 Hours a Day (1910), written by Arnold Bennett, is part of a larger work entitled "How to Live". In this volume, he offers droll, practical advice on how one might "live" (as opposed to just "existing") within the confines of 24 hours a day. In the book, Bennett addressed the large and growing number of white-collar workers that had accumulated since the advent of the Industrial Revolution. In his view, these workers put in eight hours a day, 40 hours a week, at jobs they did not

pos: Renewable energy in Canada many of which depend on high-cost diesel fuel to generate electricity. Since the 1970s, the federal government and industry have encouraged the development of solar technologies for these communities. Some of these efforts have focused on the use of hybrid systems that provide power 24 hours a day, using solar power when sunlight is available, in combination with another energy source. The National Energy Board of Canada expects that by 2040, solar power will generate 1.2% of the country's electricity while wind will provide 9.5%. As of June 2015, wind power generating capacity was 10,204 megawatts (MW), providing about 4%

pos: Sun day is approximately 24 hours, whereas a mean Martian 'sol' is 24 hours, 39 minutes, and 35.244 seconds. The English weekday name "Sunday" stems from Old English ("Sunnandæg"; "Sun's day", from before 700) and is ultimately a result of a Germanic interpretation of Latin "dies solis", itself a translation of the Greek ἡμέρα ἡλίου ("hēméra hēlíou"). Solar deities play a major role in many world religions and mythologies. The ancient Sumerians believed that the sun was Utu, the god of justice and twin brother of Inanna, the Queen of Heaven, who was identified as the planet Venus. Later, Utu was

pos: Mars slightly longer than an Earth day: 24 hours, 39 minutes, and 35.244 seconds. A Martian year is equal to 1.8809 Earth years, or 1 year, 320 days, and 18.2 hours. The axial tilt of Mars is 25.19 degrees relative to its orbital plane, which is similar to the axial tilt of Earth. As a result, Mars has seasons like Earth, though on Mars they are nearly twice as long because its orbital period is that much longer. In the present day epoch, the orientation of the north pole of Mars is close to the star Deneb. Mars has a relatively

pos: Solar News Channel Solar News Channel Solar News Channel (SNC) was a major commercial television network in the Philippines owned by Solar Entertainment Corporation's arm television subsidiary of Solar Television Network lease with its owner by Radio Philippines Network its flagship television station is DZKB-TV channel 9 in Mega Manila and other regional stations in the Philippines. Operational 18 hours a day from 6:00 AM to 12:00 MN on free TV, while 24 hours on cable, satellite and internet TV providers. Most of its live programming from studios are located at Upper Ground Floor of the Worldwide Corporate Center, Shaw Boulevard corner Epifanio

pos: Atmospheric wave Atmospheric wave An atmospheric wave is a periodic disturbance in the fields of atmospheric variables (like surface pressure or geopotential height, temperature, or wind velocity) which may either propagate ("traveling wave") or not ("standing wave"). Atmospheric waves range in spatial and temporal scale from large-scale planetary waves (Rossby waves) to minute sound waves. Atmospheric waves with periods which are harmonics of 1 solar day (e.g. 24 hours, 12 hours, 8 hours... etc.) are known as atmospheric tides. The mechanism for the forcing of the wave, for example the generation of the initial or prolonged disturbance in the atmospheric variables, can

pos: Solar power in Chile hours of thermal storage. These technologies complement each other to supply clean and stable energy 24 hours a day. The complex is located in the commune of María Elena, Segunda Región. Construction of the solar thermal electric plant commenced in 2014 and the plant is scheduled to begin operating in the second quarter of 2017. Construction of the photovoltaic plant commenced in January 2015 and the plant began operating in June 2016 with 160 MW of panels, the largest solar plant in Chile at the time. In June 2014, the 100-megawatt (MW) Amanecer Solar CAP, a photovoltaic power plant located

pos: Rare Earth hypothesis Earth's obliquity and spin is a requirement for complex life has been questioned. Kasting argues that a moonless Earth would still possess habitats with climates suitable for complex life and questions whether the spin rate of a moonless Earth can be predicted. Although the giant impact theory posits that the impact forming the Moon increased Earth's rotational speed to make a day about 5 hours long, the Moon has slowly "stolen" much of this speed to reduce Earth's solar day since then to about 24 hours and continues to do so: in 100 million years Earth's solar day will be

pos: Solar power in India plant by envisaging hybrid solar plant with a mix of solar thermal and solar PV plants at a site. Also to optimise the cost of power, generation can be from the cheaper solar PV plant (33% generation) during the daylight whereas the rest of the time in a day is from the solar thermal storage plant (67% generation from Solar power tower and parabolic trough types) for meeting 24 hours baseload power. When solar thermal storage plant is forced to idle due to lack of sunlight locally during cloudy days in monsoon season, it is also possible to consume (similar

pos: DXKC-TV compliance with the National Telecommunications Commission's guidelines. However, it still continues on cable networks 24 hours a day. On September 1, 2014, BEAM Channel 31 and its provincial affiliates ended its partnership with Solar, as BEAM prepares its ISDB-T digital television. UHF Channel 32 (581.143 MHz) With the exception of eGG Network and Inquirer 990 Television, programming for the analog signal and digital subchannels is supplied by BEAM's management. Though Inquirer 990 TV has a round-the-clock broadcast (airing music on its livestream during off-air hours of its radio counterpart), BEAM's digital signal follows the analog signal's broadcasting hours. DXKC-TV DXKC-TV

pos: Jamnagar Kileshwar Temple in the Barda Hills, the ancient Sun Temple at Gop and the Bhid Bhanjan Temple built by the JAM Saheb. Bala Hanuman is highly venerated among the devotees of Rama. The Bala Hanuman Temple is noted for the continuous chanting of the mantra "Sri Ram, Jai Ram, Jai Jai Ram". Started on 1 August 1964, the chant continues for 24 hours a day, in shifts, and is still continuing. This has earned the temple a place in the Guinness Book of World Records Click here to know how many years There are many Shiv Temples within the city,

neg: Hour the 17th century. The Islamic day begins at sunset. The first prayer of the day (maghrib) is to be performed between just after sunset and the end of twilight. Until 1968 Saudi Arabia used the system of counting 24 equal hours with the first hour starting at sunset. For many centuries, up to 1925, astronomers counted the hours and days from noon, because it was the easiest solar event to measure accurately. An advantage of this method (used in the Julian Date system, in which a new Julian Day begins at noon) is that the date doesn't change during a

neg: Swatch Internet Time of hours and minutes, the mean solar day is divided into 1,000 parts called ".beats". Each .beat lasts 1 minute and 26.4 seconds. One .beat is equal to one decimal minute in French decimal time. Although Swatch does not specify units smaller than one .beat, third party implementations have extended the standard by adding "centibeats" or "sub-beats", for extended precision: @248.00. Each "centibeat" is a hundredth of a .beat and is therefore equal to one French decimal second (0.864 seconds). There are no time zones; instead, the new time scale of Biel Meantime (BMT) is used, based on the company's

neg: Ancient Roman units of measurement mean solar day. Although the division of hours into minutes and seconds did not occur until the middle ages, ancient astrologers had a "minuta" equal to of a day (24 modern minutes), a "secunda" equal to of a day (24 modern seconds), and a "tertia" equal to of a day (0.4 modern seconds). Ancient Roman units of measurement were added to the Unicode Standard in April 2008 with the release of version 5.1. The Unicode block for ancient Roman units of measurement, called Ancient Symbols, is U+10190–U+101CF, i.e. in the upper plane: Ancient Roman units of measurement The ancient Roman

neg: Swatch Internet Time officially recognized by the standard. The formula for calculating the current time in .beats from UTC+1 is: Round down the outcome. Swatch Internet Time Swatch Internet Time (or .beat time) is a decimal time concept introduced in 1998 by the Swatch corporation as part of their marketing campaign for their line of "Beat" watches. Instead of hours and minutes, the mean solar day is divided into 1000 parts called ".beats". Each .beat is equal to one decimal minute in the French Revolutionary decimal time system and lasts 1 minute and 26.4 seconds (86.4 seconds) in standard time. Times are notated

neg: Net metering in New Mexico in San Francisco produces 5 megawatts of solar energy. It is built on top of enclosed reservoir in the middle of San Francisco. It is considered a utility-scale solar facility. For customers with solar systems that can generate 10 kilowatts or less, the utility company has a choice in how they compensate that customer for net excess generation. The utility can give the customer a credit on their next bill equal to the utility’s energy rate (the costs that the utility pays for its own electricity), or crediting the customer for the kilowatt hours of electricity that they have supplied

neg: Solar neutrino unit rate of the daughter nucleus is given by formula_2, where With typical neutrino flux of 10 cm s and a typical interaction cross section of about 10 cm, about 10 target atoms are required to produce one event per day. Taking into account that 1 mole is equal to 6.022 atoms, this number corresponds to ktons of the target substances, whereas present neutrino detectors operate at much lower quantities of those. Solar neutrino unit The solar neutrino unit (SNU) is a unit of Solar neutrino flux widely used in neutrino astronomy and radiochemical neutrino experiments. It is equal to the

neg: Orbital effects on climate into the following: G=G (sin β+C) where β is the solar altitude angle, which is basically the angle the sun appears to be above the horizon from wherever the solar irradiation is to be calculated, and C is a dimensionless ratio equal to anywhere between 0.103 and 0.138 depending on what day of the year it is where the irradiation is to be calculated. The specific day helps determine for the equation where along Earth's orbit the location being measured is. With this calculation, it is easier to realize just how much the sun's solar radiation contributes to Earth's climate

neg: Time discipline many social and even religious consequences for those who could afford and use them. Before time became standardized, clock masters used “True Time”. The day work began and ended with the sun. This time period was divided into 12 equal hours. This meant that these hours would vary with the seasons, as the length of daylight changed. Each town would have their own variance of this “True Time”. Eventually, cities adopted “Mean Time”, which is how we think of time nowadays. Astronomers used the Earth’s rotation and the stars to calculate the time, and divided the day into 24 uniform

neg: Swatch Internet Time Swatch Internet Time Swatch Internet Time (or .beat time) is a decimal time concept introduced in 1998 by the Swatch corporation as part of their marketing campaign for their line of "Beat" watches. Instead of hours and minutes, the mean solar day is divided into 1000 parts called ".beats". Each .beat is equal to one decimal minute in the French Revolutionary decimal time system and lasts 1 minute and 26.4 seconds (86.4 seconds) in standard time. Times are notated as a 3-digit number out of 1000 after midnight. So, @248 would indicate a time 248 .beats after midnight representing 248/1000

neg: Solar cooker food in a solar oven is generally not stirred or turned over, both because it is unnecessary and because opening the solar oven allows the trapped heat to escape and thereby slows the cooking process. If wanted, the solar oven may be checked every one to two hours, to turn the oven to face the sun more precisely and to ensure that shadows from nearby buildings or plants have not blocked the sunlight. If the food is to be left untended for many hours during the day, then the solar oven is often turned to face the point where the

neg: Panel generation factor Panel generation factor Panel generation factor (PGF) [1] is used while calculating the size of solar photovoltaic cells. It is a varying factor depending upon the climate of the site location (depending upon global geographic location). For example: in Thailand it is 3.43, in EU countries it is 2.93, etc. This factor is used in calculation of "Total Watt-Peak Rating" while designing the size of solar photovoltaic cells. Therefore, "Total Watt-Peak Rating" = "Total Watt-hours per day needed/generated from the PV modules" divided by "PGF". "Total Watt-Hours per Day" = "Total Watt-hours per day needed by appliances" Multiplied by "1.3

neg: Ancient Roman units of measurement subjects every Sunday off in honor of his family's tutelary deity, the Unconquered Sun, thus cementing the seven-day week into Roman civil society. The Romans divided the daytime into twelve "horae" or hours starting at sunrise and ending at sunset. The night was divided into four watches. The duration of these hours varied with seasons; in the winter, when the daylight period was shorter, its 12 hours were correspondingly shorter and its four watches were correspondingly longer. Astrologers divided the solar day into 24 equal hours, and these astrological hours became the basis for medieval clocks and our modern 24-hour

neg: Unitary method 7 miles in 2 hours. How far does he walk in 7 hours?", one would first calculate how far the man walks in 1 hour. One can safely assume that he would walk half the distance in half the time. Therefore, dividing by 2, the man walks 3.5 miles in 1 hour. Multiplying by 7 for 7 hours, the man walks 7x3.5=24.5 miles, or let us consider the distance travelled by the man be X, then divide it given distance that is 7 (x/7). It is equal to the time taken to travel X distance that is 7 hours divided

neg: Noncentral hypergeometric distributions exactly "n" fish regardless of how long it may take. You are stopping after you have caught "n" fish even if you can see more fish that are tempting you. This scenario will give a distribution of the types of fish caught that is equal to Wallenius’ noncentral hypergeometric distribution. You are catching fish as in example 1, but you are using a big net. You are setting up the net one day and coming back the next day to remove the net. You count how many fish you have caught and then you go home regardless of how many

neg: Mars Exploration Rover to provide 125W of electrical power at the start of the mission, falling to 100W after 14 years of service. It is used to power the MSL's many systems and instruments. Solar panels were also considered for the MSL, but RTGs provide constant power, regardless of the time of day, and thus the versatility to work in dark environments and high latitudes where solar energy is not readily available. The MSL generates 2.5 kilowatt hours per day, compared to the Mars Exploration Rovers, which can generate about 0.6 kilowatt hours per day. It was thought that by the end of

neg: Hebrew calendar divided into 12 equal portions, albeit a different amount of time than the "hours" of the daytime. The earliest and latest times for Jewish services, the latest time to eat chametz on the day before Passover and many other rules are based on "Sha'oth Zemaniyoth". For convenience, the modern day using "Sha'oth Zemaniyoth" is often discussed as if sunset were at 6:00 pm, sunrise at 6:00 am and each hour were equal to a fixed hour. For example, "halachic" noon may be after 1:00 pm in some areas during daylight saving time. Within the Mishnah, however, the numbering of the

neg: Andasol Solar Power Station climate, the site has exceptionally high annual direct insolation of 2,200 kWh/m² per year. Each plant has a gross electricity output of 50 megawatts (MW), producing around 165 gigawatt-hours (GW·h) per year. The collectors installed have a combined surface area of 51 hectares (equal to 70 soccer fields); it occupies about 200 ha of land. Andasol has a thermal storage system which absorbs part of the heat produced in the solar field during the day. This heat is then stored in a molten salt mixture of 60% sodium nitrate and 40% potassium nitrate. This process almost doubles the number of

neg: Opportunity mission timeline passed on March 30, 2012 (Sol 2909) and on April 1 there was a small cleaning event. On Sol 2913 (April 3, 2012) solar array energy production was 321 watt-hours. The mission of Mars rover "Opportunity" continued, and by May 1, 2012 (Sol 2940), energy production had increased to 365 watt-hours, with the solar array dust factor at 0.534. The team prepared the rover for movement and finished up collecting data on Amboy rock. 60 Doppler radio passes were completed over the winter. On May 8, 2012 (Sol 2947), the rover moved . On that day the Solar energy production

neg: Gardening in restricted spaces of timber to divide the large box into equal one foot by one foot squares. The ideal placement of the box is a spot that receives six to eight hours of sunlight per day and is away from any shading trees or shrubs. The box should be able to access from all sides. If this is impossible, make a narrower box, three by four, or a smaller box, three by three. Never walk in the plot – it will compact the soil and ruin the dynamics of the box. How many seeds are to be placed in each square foot

neg: Solar power in France Solar Park. Approximately 560 MW of new installations were added during the year. In 2018, the state-owned company EDF had plans to invest up to €25 billion in PV power generation, and introduce green electricity tariffs; the plan is projected to "develop 30 gigawatt of solar capacity in France between 2020 and 2035". The insolation in France ranges from 3 sun hours/day in the north to 5 sun hours/day in the south. The output of a solar array is a function of age, temperature, tilt, shading, tracking, and insolation. Solar power in France Solar power in France including overseas territories

neg: Bastille Day event flare was also followed by a full-halo coronal mass ejection and a geomagnetic super storm on July 15–16. The geomagnetic storm peaked at the extreme level, G5, in the late hours of July 15. Despite their great distance from the Sun, the Bastille Day event was observed by Voyager 1 and Voyager 2. Bastille Day event The Bastille Day Flare or Bastille Day Event was a powerful solar flare on July 14, 2000, the national day of France, occurring near the peak of the solar maximum in solar cycle 23. The X5.7-class flare originated from a sunspot known as Active

neg: Hour Hour An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions. The seasonal, temporal, or unequal hour was established in the ancient Near East as of the night or daytime. Such hours varied by season, latitude, and weather. It was subsequently divided into 60 minutes, each of 60 seconds. Its East Asian equivalent was the "shi", which was of the apparent solar day; a similar system was eventually developed in Europe which measured its equal or equinoctial hour as of such days measured

neg: Astronomical system of units at least three different measures of time. The astronomical unit of time is the Day, defined as seconds. 365.25 days make up one Julian year. The symbol "D" is used in astronomy to refer to this unit. The astronomical unit of mass is the solar mass. The symbol is often used to refer to this unit. The solar mass (), , is a standard way to express mass in astronomy, used to describe the masses of other stars and galaxies. It is equal to the mass of the Sun, about times the mass of the Earth or 1 048 times

neg: Seconds pendulum the second was defined as a fraction of the Earth's rotation time or mean solar day and determined by clocks whose precision was checked by astronomical observations. Solar time is a calculation of the passage of time based on the position of the Sun in the sky. The fundamental unit of solar time is the day. Two types of solar time are apparent solar time (sundial time) and mean solar time (clock time). Mean solar time is the hour angle of the mean Sun plus 12 hours. This 12 hour offset comes from the decision to make each day start

neg: Pontey location enjoys greater solar illumination compared to neighboring towns, and because of that the calculation of hours of sunshine throughout the year is substantially equal. The country is located in climate zone E (2971 Celsius Degrees Day) but under the regional contributions for heating all the municipalities of Aosta Valley are valued as climate zone F. During the Fascist period, Pontey was merged to the municipality of Châtillon, at the time called "Castiglione Dora", due to the Italianization programme. Later, the town was restored in 1946. The name probably derives from "ponticulus" name given by Romans during the period of

neg: Solar power in Kentucky about 4.5 sun hours per day, similar to Germany which is at 4.8 sun hours per day. Solar power in Kentucky Solar power in Kentucky has been growing in recent years due to new technological improvements and a variety of regulatory actions and financial incentives, particularly a 30% federal tax credit, available through 2016, for any size project. Kentucky could generate 10% of all of the electricity used in the United States from land cleared from coal mining in the state. Covering just one-fifth with photovoltaics would supply all of the state's electricity. The Berea Solar Farm is a community

neg: Gaussian gravitational constant used since Gauss' time because it was held to be a fundamental constant, as described above. The solar mass, mean solar day and sidereal year with which Gauss defined his constant are all slowly changing in value. If modern values were inserted into the defining equation, a value of would result. It is also possible to set the gravitational constant, the mass of the Sun, and the astronomical unit to 1. This defines a unit of time with which the period of the resulting orbit is equal to . These are often called "canonical units". Gaussian gravitational constant The Gaussian

neg: Kurdish calendar solar year, which in 1079 was made equal to the Julian year by the introduction of the leap year. Probably under the same circumstances, the Kurds learned to use the same abductions for the days of a week. The first Kurdish day of the week Sheme, gets a digit prefix to mark the first, second, third, fourth and fifth day after first day of week. The last day of the week is Heynî or Jume (Friday) which is a free day of work for many cultures in Mideast. Heynî (none, relax) make a best explanations for the last free day

neg: Nisan-years Israel) knew that by adding in seven intercalary months in nineteen years (called a Small Mahzor in the Jewish Talmudic Calendar, and the Metonic Cycle in non-Jewish context), the solar and the lunar years are basically synchronized. Since a tropical year is 365.2422 days, and a synodic month is averaged 29.53059 days, in nineteen years the solar and the lunar calendars will only differ by about two hours, or 1 part in 80,000. Nisan-years begins from the Spring season. Technically, its New Years Day is the day after the New Moon closest to (within fifteen days before or after) the

neg: Illinois Solar Decathlon Decathlon competition, Team Illinois has designed the Re_home. For rapid assembly after a natural disaster, the solar powered home will demonstrate how environmentally aware living can be brought to the forefront of a community-led recovery effort. Through a carefully thought out process the Re_home can be pre-constructed and quickly deployed immediately following a natural disaster. When called upon, the house mobilizes quickly from its constructed location towards new communities. Upon arrival the house is assembled within several hours. Once sealed, the home becomes a livable space the day it arrives, providing new shelter for disaster victims. During the days following

neg: Survival function curve fit to the data. An alternative to graphing the probability that the failure time is "less" than or equal to 100 hours is to graph the probability that the failure time is "greater" than 100 hours. The probability that the failure time is greater than 100 hours must be 1 minus the probability that the failure time is less than or equal to 100 hours, because total probability must sum to 1. This gives P(failure time > 100 hours) = 1 - P(failure time < 100 hours) = 1 – 0.81 = 0.19. This relationship generalizes to all failure

neg: Inca Empire a full 365-day solar year, those in charge of the calendar had to adjust every winter solstice. Each lunar month was marked with festivals and rituals. Apparently, the days of the week were not named and days were not grouped into weeks. Similarly, months were not grouped into seasons. Time during a day was not measured in hours or minutes, but in terms of how far the sun had travelled or in how long it had taken to perform a task. The sophistication of Inca administration, calendrics and engineering required facility with numbers. Numerical information was stored in the knots

neg: Rotation period hence the rate of rotation can vary (because the product of the moment of inertia and the rate of rotation is equal to the angular momentum, which is fixed). Hyperion, a satellite of Saturn, exhibits this behaviour, and its rotation period is described as chaotic. Earth's rotation period relative to the Sun (its mean solar day) consists of 86,400 seconds of mean solar time, by definition. Each of these seconds is slightly longer than an SI second because Earth's solar day is now slightly longer than it was during the 19th century, due to tidal deceleration. The mean solar second

neg: Hulse–Taylor binary companion both follow elliptical orbits around their common center of mass. The period of the orbital motion is 7.75 hours, and the two neutron stars are believed to be nearly equal in mass, about 1.4 solar masses. Radio emissions have been detected from only one of the two neutron stars. The minimum separation at periastron is about 1.1 solar radii; the maximum separation at apastron is 4.8 solar radii. The orbit is inclined at about 45 degrees with respect to the plane of the sky. The orientation of periastron changes by about 4.2 degrees per year in direction of the

neg: RR Centauri effective temperature of around 6900 K, and a radius somewhat larger than twice the solar radius. The secondary component is 0.39 solar masses, giving a mass ratio of the system ("q") of 0.210. the secondary has a temperature of about 6890 K and a radius is almost equal to the solar radius. The orbital period of this system is 0.6057 days (14.53 hours). Recent calculations by astronomers from the Chinese Academy of Sciences show a possible cyclic variation in orbital period over 65.1 ± 0.4 years whose amplitude is 0.0124 ± 0.0007 days. The origin of this periodic variation could

neg: Radiative forcing other forcings. Radiative forcing (measured in watts per square meter) can be estimated in different ways for different components. For solar irradiance ("i.e.," "solar forcing"), the radiative forcing is simply the change in the average amount of solar energy absorbed per square meter of the Earth's area. Since the Earth's cross-sectional area exposed to the Sun (πr) is equal to 1/4 of the surface area of the Earth (4πr), the solar input per unit area is one quarter the change in solar intensity. This must be multiplied by the fraction of incident sunlight that is absorbed, F=(1-R), where R is

neg: Solar thermal energy size of the steam turbine-generator to store heat and send heat to the steam turbine at the same time. Heat storage enables better utilization of the steam turbine. With day and some nighttime operation of the steam-turbine Andasol 1 at 50 MW peak capacity produces more energy than Nevada Solar One at 64 MW peak capacity, due to the former plant's thermal energy storage system and larger solar field. The 280MW Solana Generating Station came online in Arizona in 2013 with 6 hours of power storage. Hassi R'Mel integrated solar combined cycle power station in Algeria and Martin Next Generation

neg: Plant perception (physiology) auxin. Many plants exhibit certain phenomena at specific times of the day; for example, certain flowers open only in the mornings. Plants keep track of the time of day with a circadian clock. This internal clock is set to solar time every day using sunlight, temperature and other cues, similar to the biological clocks of other organisms. The internal clock coupled with the ability to perceive light also allows plants to measure the time of the day and so find the season of the year. This is how many plants know when to flower. (see photoperiodism) The seeds of many

neg: Duck curve Duck curve In utility-scale electricity generation, the duck curve is a graph of power production over the course of a day that shows the timing imbalance between peak demand and renewable energy production. In many energy markets the peak demand occurs after sunset, when solar power is no longer available. In locations where a substantial amount of solar electric capacity has been installed, the amount of power that must be generated from sources other than solar or wind displays a rapid increase around sunset and peaks in the mid-evening hours, producing a graph that resembles the silhouette of a duck.

neg: Orlando nightclub shooting audio recordings made during the shooting, which record officers' attempts to contact Mateen, their remarks on his "serious, unruffled attitude", and their conversations about how to respond to the hostage situation. Also released that day was an additional 9-1-1 call made by a woman who made it out of the nightclub with her sister, who was shot. The next day, on , 21 additional 9-1-1 calls were released. This was followed by three additional hours of 9-1-1 calls released on . In many of these calls, people who were trapped inside bathrooms, kitchens, and an upstairs office were questioning why

neg: Direct insolation Direct insolation Direct insolation is the solar insolation measured at a given location on Earth with a surface element perpendicular to the Sun's rays, excluding diffuse insolation (the solar radiation that is scattered or reflected by atmospheric components in the sky). Direct insolation is equal to the solar irradiance above the atmosphere minus the atmospheric losses due to absorption and scattering. While the solar irradiance above the atmosphere varies with the Earth-Sun distance and solar cycles, the losses depend on the time of day (length of light's path through the atmosphere depending on the Solar elevation angle), cloud cover, moisture

neg: Direct insolation of sunlight during the night, increased scatter in the morning and evening hours, average effects of cloud cover and smog, as well as seasonal variations of the mid-day solar elevation. Direct insolation is measured in (W/m²) or kilowatt-hours per square meter per day (kW·h/(m²·day)). In the case of photovoltaics, average direct insolation is commonly measured in terms of peak direct insolation as kWh/(kWp·y) Since radiation directly from the sun can be focussed with mirrors and lens, it can be applied to concentrated solar thermal (CST) systems. Due to clouds and aerosols, the direct insolation can fluctuate throughout the day, so

neg: Forge of Empires gold, jewelry, textiles, or coke). The player must select how many of these he wants to produce (by selecting the production time of 4 hours, 8 hours, 1 day or 2 days). The amount these production times yield depends on whether or not the boost has been found on the continental map and has been claimed by owning the territory associated with it. A cost of supplies and coins is then taken, the amount depending on the production period and age to produce the goods, though they are refunded if the goods production is cancelled. Goods are used to trade

neg: Equinox are of approximately equal duration all over the planet. They are not exactly equal, however, due to the angular size of the Sun, atmospheric refraction, and the rapidly changing duration of the length of day that occurs at most latitudes around the equinoxes. The word is derived from the Latin ', from ' (equal) and ' (genitive ') (night). The equinoxes are the only times when the solar terminator (the "edge" between night and day) is perpendicular to the equator. As a result, the northern and southern hemispheres are equally illuminated. The word comes from Latin "Aequus", meaning "equal", and

neg: Solar balloon energy received on a given surface area in a given time. It is commonly expressed as average irradiance in watts per square meter (W/m2). Direct insolation is the solar irradiance measured at a given location on Earth with a surface element perpendicular to the Sun's rays, excluding diffuse insolation (the solar radiation that is scattered or reflected by atmospheric components in the sky). Direct insolation is equal to the solar constant minus the atmospheric losses due to absorption and scattering. While the solar constant varies with the Earth-Sun distance and solar cycles, the losses depend on the time of day

neg: Tide clock low tide. The size of the lunar tide compared to the solar tide (which comes once every 12 hours) is generally about 2 to 1, but the actual proportion along any particular shore depends on the location, orientation, and shape of the local bay or estuary. Along some shorelines, the solar tide is the only important tide, and ordinary 12-hour clocks suffice since the high and low tides come at nearly the same time every day. Because ordinary tidal clocks only track a part of the tidal effect, and because the relative size of the combined effects is different in

neg: Aditya (boat) be performed remotely as if a computer is plugged on the boat. This makes the boat even more safe. The project cost was US$370,000. The boat satisfies the Indian Register of Shipping's safety requirement of being able to maintain cruise speed with one set of propulsion shut down. The total energy needed to operate the ferry for 5.5 hours is 110 kWh (20 kW is average power). 1 kW solar panels produce 4 kWh of energy per day, factoring the system efficiency and standard sun of the location of 5.72 (average throughout the year). Hence the energy from solar panels

neg: History of sundials since every day was divided into twelve equal segments; thus, hours were shorter in winter and longer in summer. The idea of using hours of equal time length throughout the year was the innovation of Abu'l-Hasan Ibn al-Shatir in 1371, based on earlier developments in trigonometry by Muhammad ibn Jābir al-Harrānī al-Battānī (Albategni). Ibn al-Shatir was aware that "using a gnomon that is parallel to the Earth's axis will produce sundials whose hour lines indicate equal hours on any day of the year." His sundial is the oldest polar-axis sundial still in existence. The concept later appeared in Western sundials

neg: Direct insolation forecasting the available resource is important in these applications Direct insolation Direct insolation is the solar insolation measured at a given location on Earth with a surface element perpendicular to the Sun's rays, excluding diffuse insolation (the solar radiation that is scattered or reflected by atmospheric components in the sky). Direct insolation is equal to the solar irradiance above the atmosphere minus the atmospheric losses due to absorption and scattering. While the solar irradiance above the atmosphere varies with the Earth-Sun distance and solar cycles, the losses depend on the time of day (length of light's path through the atmosphere

neg: Rich-club coefficient be parameterized in terms of node degrees "k" , indicating a degree cut-off. The rich-club coefficient for a given network "N" is then defined as: </math>|}} where formula_1 is the number of edges between the nodes of degree greater than or equal to "k", and formula_2 is the number of nodes with degree greater than or equal to "k". This measures how many edges are present between nodes of degree at least "k", normalized by how many edges there could be between these nodes in a complete graph. When this value is close to 1 for values of "k" close

neg: Sundial L, since tan 45° = 1. The shadow moves "counter-clockwise" on a south-facing vertical dial, whereas it runs clockwise on horizontal and equatorial north-facing dials. Dials with faces perpendicular to the ground and which face directly South, North, East, or West are called "vertical direct dials". It is widely believed, and stated in respectable publications, that a vertical dial cannot receive more than twelve hours of sunlight a day, no matter how many hours of daylight there are. However, there is an exception. Vertical sundials in the tropics which face the nearer pole (e.g. north facing in the zone between

neg: Hour from noon to noon. The minor variations of this unit were eventually smoothed by making it of the mean solar day, based on the measure of the sun's transit along the celestial equator rather than along the ecliptic. This was finally abandoned due to the minor slowing caused by the Earth's tidal deceleration by the Moon. In the modern metric system, hours are an accepted unit of time equal to 3,600 seconds but an hour of Coordinated Universal Time (UTC) may incorporate a positive or negative leap second, making it last 3,599 or 3,601 seconds, in order to keep it

neg: Field Day (amateur radio) radio station in a field or park. Some might use quickly deployable portable antennas while other might erect more elaborate radio masts and towers supporting several antennas. Generators or solar power provide electricity to amateur radio transceivers, which may be located in tents, cars, recreational vehicles, or other portable shelters. The contest aspect of a Field Day operating event is to contact as many stations as possible in the given time period (twenty-four hours, during a weekend, if setup commences before the contest starts, or 27 hours if setup commences at contest start time) using the portable station. Each station

neg: Grid energy storage time. Any combination of energy storage and demand response has these advantages: Energy derived from solar, tidal and wind sources inherently varies – the amount of electricity produced varies with time of day, moon phase, season, and random factors such as the weather. Thus, renewables in the absence of storage present special challenges to electric utilities. While hooking up many separate wind sources can reduce the overall variability, solar is reliably not available at night, and tidal power shifts with the moon, so slack tides occur four times a day. How much this affects any given utility varies significantly. In

neg: Exploration of Uranus cloud tops. This was the probe's first solo planetary flyby, since "Voyager 1" ended its tour of the outer planets at Saturn's moon Titan. Uranus is the third-largest planet in the Solar System. It orbits the Sun at a distance of about and completes one orbit every 84 years. The length of a day on Uranus as measured by "Voyager 2" is 17 hours and 14 minutes. Uranus is distinguished by the fact that it is tipped on its side. Its unusual position is thought to be the result of a collision with a planet-sized body early in the Solar

neg: Thermal radiation a car that has been sitting in the sun. Selective surfaces can also be used on solar collectors. We can find out how much help a selective surface coating is by looking at the equilibrium temperature of a plate that is being heated through solar radiation. If the plate is receiving a solar irradiation of 1350 W/m² (minimum is 1325 W/m² on July 4 and maximum is 1418 W/m² on January 3) from the sun the temperature of the plate where the radiation leaving is equal to the radiation being received by the plate is 393 K (248 °F). If

neg: Mesquite Solar project Mesquite Solar project The Mesquite Solar project is a photovoltaic power plant being built in Arlington, Maricopa County, Arizona, owned by Sempra Generation. Phase 1 has a nameplate capacity of 150 megawatts (MW). The project has a planned capacity of up to 700 MW when completed, making it among the world's largest PV power stations. Mesquite Solar 1 uses 800,000 solar panels from Suntech Power. The EPC contractor is Zachry Holdings. Construction began in 2011 and was completed in 2013. Mesquite 1 is projected to generate more than 350 gigawatt-hours of electricity annually (an average of about 40 MW), and

neg: BFR (rocket) sub-surface water ice deposit. The quantity and purity of the water ice must be appropriate. A preliminary study by SpaceX estimates the propellant plant is required to mine water ice and filter its impurities at a rate of 1 ton per day. The system under study is projected to produce 1 kg/day of O/CH propellant while consuming 700 watts of electrical power. Overall unit conversion rate expected is one metric ton of propellant per 17 megawatt-hours energy input from solar power. The biggest lingering questions about SpaceX's Mars habitation plans have to do with health hazards of prolonged space travel,

neg: Thomas Fuller (mental calculator) skill was even used as proof that enslaved Blacks were equal to whites in intelligence, which fueled some pro-abolitionist discussion. When Fuller was about 70 years old, William Hartshorne and Samuel Coates of Pennsylvania were in Alexandria and, having heard of Fuller's powers, sent for him. They asked him two questions which satisfied their curiosity. First, when they asked him how many seconds there were in a year and a half, he answered in about two minutes, 47,304,000. Second, when they asked how many seconds a man has lived who is 70 years, 17 days and 12 hours old, he

neg: Watt horsepower. A small electric heater with one heating element can use 1.0 kilowatt. The average electric power consumption of a household in the United States is about one kilowatt. A surface area of one square meter on Earth receives typically about one kilowatt of sunlight from the sun (the solar irradiance) (on a clear day at mid day, close to the equator). The megawatt (MW) is equal to one million (10) watts. Many events or machines produce or sustain the conversion of energy on this scale, including large electric motors; large warships such as aircraft carriers, cruisers, and submarines; large

neg: Renewable energy in Bangladesh Renewable energy in Bangladesh Renewable energy in Bangladesh refers to the use of renewable energy to generate electricity in Bangladesh. The current renewable energy comes from biogas that is originated from biomass , hydro power, solar and wind. The long term average sunshine data indicates that the period of bright sunshine hours in the coastal regions of Bangladesh varies from 3 to 11 hours daily. The insolation in Bangladesh varies from 3.8 kWh/m/day to 6.4 kWh/m/day at an average of 5 kWh/m/day. These indicate that there are good prospects for solar thermal and photovoltaic application in the country. With an

neg: Solar power in Armenia for a solar photo-voltaic power plant per 1 kW is very high. Solar power in Armenia Solar energy is widely available in Armenia due to its geographical position and is considered a developing industry. According to the Ministry of Energy Infrastructures and Natural Resources of Armenia, Armenia has an average of about 1720 kilowatt hour (kWh) solar energy flow per square meter of horizontal surface annually and has a potential of 1000 MW power production. In the capital Yerevan, the average solar energy flux is equal to 1642 kWh/m. Armenia's area cannot be considered as homogeneous from the perspective of

neg: Net metering 2.0" where the compensation to solar customers is close to retail rates. The policy also moved time of use (TOU) rates for residential customers. Additionally, the rates were updated to reflect "conditions on California's grid." The California Public Utilities Commission (CPUC) approved new TOU rates for San Diego Gas & Electric Company and moved the start of the peak period to 4 pm (four hours later than it was prior to the change). The Solar Energy Industries Association believes the new peak rates are too late in the day. In October 2017, CPUC extended the grandfathering period for many distributed

neg: House (astrology) basis for house division, the chosen plane is divided into equal arcs of 30° each. A difference will be made as to whether these divisions are made directly on the ecliptic, or on the celestial equator or some other great circle, before being projected on the ecliptic. If time is the basis for house division, a difference must be made for whether the houses are based on invariant equal hours (each house represents 2 hours of the sun's apparent movement each day) or temporal hours (daytime and night-time divided into six equal parts, but here the temporal hours will vary

neg: PS10 solar power plant a Spanish engineering company; and the Solar Tower was designed and built by ALTAC, another Spanish engineering and construction company. Each of the mirrors has a surface measuring that concentrates the sun's rays to the top of a 115-meter (377 ft) high, 40-story tower where a solar receiver and a steam turbine are located. The turbine drives a generator, producing electricity. The PS10 is located 20 km west of Seville (which receives at least nine hours of sunshine 320 days per year, with 15 hours per day in mid summer). The solar receiver at the top of the tower produces

neg: Earth's rotation These tables were used to calculate the world's ephemerides between 1900 and 1983, so this second became known as the ephemeris second. In 1967 the SI second was made equal to the ephemeris second. The apparent solar time is a measure of the Earth's rotation and the difference between it and the mean solar time is known as the equation of time. Earth's rotation period relative to the fixed stars, called its "stellar day" by the International Earth Rotation and Reference Systems Service (IERS), is seconds of mean solar time (UT1) , mean solar days). Earth's rotation period relative to

neg: Andasol Solar Power Station operational hours at the solar thermal power plant per year. A fully loaded storage system holds 1,010 MW·h of heat, enough to run the turbine and produce electricity for about 7.5 hours at full-load, in case of overcast skies or after sunset. The heat reservoirs each consist of two tanks measuring 14 m in height and 36 m in diameter and containing molten salt. Andasol 1 is able to supply environmentally friendly solar electricity for up to 200,000 people. Andasol consists of 3 projects: Andasol-1 (completed 2008), Andasol-2 (completed 2009) and Andasol-3 (completed 2011). Each project generates approximately 165 GW-h

neg: Solar power off-grid and for future 100% renewable energy scenarios to have continuous electricity availability. Solar electricity is inherently variable and predictable by time of day, location, and seasons. In addition solar is intermittent due to day/night cycles and unpredictable weather. How much of a special challenge solar power is in any given electric utility varies significantly. In a summer peak utility, solar is well matched to daytime cooling demands. In winter peak utilities, solar displaces other forms of generation, reducing their capacity factors. In an electricity system without grid energy storage, generation from stored fuels (coal, biomass, natural gas, nuclear) must

neg: Equal Pay Day Germany it was observed on March 19. The date on which Equal Pay Day is observed is different in every country due to differing formulas for observing the day and also due to different wage gaps. For example Equal Pay Day in Czech Republic is observed each year as a major two-day event involving over 2,000 people with an extensive educational program. See more on http://www.equalpayday.cz. Equal Pay Day Equal Pay Day is the symbolic day dedicated to raising awareness of the gender pay gap. The date for 2018 was April 10 in the United States. This date symbolizes how

neg: Cleaning event 2009 and April 28, 2009 the power output of the solar arrays were increased by cleaning events. The power output of "Spirit's" solar arrays increased from 223 watt hours per day on March 31, 2009 to 372 watt hours per day on April 29, 2009. "Spirit" had experienced multiple cleaning events during its operation that aided in its mission extension. However, the lack of cleaning event was noted as a factor in its demise. Other factors that affect solar power output include the opacity of the Martian atmosphere and Martian seasonal changes, however this does not account for the unexplained

neg: History of Freeview UK meant that 5USA+1 extended its hours. On the second of February, 5Spike+1 launched as a placeholder service, lasting 2 hours a day. The Vault moved multiplexes becoming Manchester only. History of Freeview UK Freeview is the name for the collection of free-to-air services on the Digital Terrestrial Television platform in the United Kingdom. The service was launched at 5am on 30 October 2002 and is jointly operated by its five equal shareholders – BBC, ITV, Channel 4, BSkyB and transmitter operator Arqiva. This article documents the history of the Freeview service, from its inception up to the present. Following the

neg: Timekeeping on Mars average length of a Martian sidereal day is (88,642.66300 seconds based on SI units), and the length of its solar day (often called a "sol") is (88,775.244147 seconds). The corresponding values for Earth are currently and , respectively. This yields a conversion factor of 1.02749125170 days/sol. Thus Mars' solar day is only about 2.7% longer than Earth's. A convention used by spacecraft lander projects to date has been to keep track of local solar time using a 24-hour "Mars clock" on which the hours, minutes and seconds are 2.7% longer than their standard (Earth) durations. For the Mars Pathfinder, Mars

neg: How to Live on 24 Hours a Day home from work, in the evening hours, and especially during the weekends. During this time, he prescribed improvement measures such as reading great literature, taking an interest in the arts, reflecting on life, and learning self-discipline. Bennett wrote that time is the most precious of commodities. He said that many books have been written on how to live on a certain amount of money each day. And he added that the old adage "time is money" understates the matter, as time can often produce money, but money cannot produce more time. Time is extremely limited, and Bennett urged others to