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The rotation of the Earth. A circle is a day, which is called a solar day.
It takes 23 hours and 56 minutes and seconds for the Earth to complete one revolution. Everyone knows that the earth revolves.
A week is called a year, with 365 days, 5 hours, 48 minutes and 46 seconds; There are 23 hours and 56 minutes and seconds in a day, which is a solar day. The sidereal day is always a little shorter than the true solar day. This is because the Earth is so far away from the star that it appears to be motionless from the star, and its orbit has become a point relative to such a distance.
The rays of light from these distant objects are parallel, and the time interval between the meridians of a certain place facing a star does not change no matter where the Earth is in its orbit. In contrast, the Sun is much closer to the Earth, moving from west to east along the ecliptic, moving almost 1 degree a day and night. For a meridian of a certain place, when a sidereal day is completed, because the sun has moved, the earth's rotation is also from west to east, so the earth must turn another angle before the sun passes this meridian again, which is the completion of a true solar day.
The sidereal day is only used in astronomical work, and the "day" we use in real life refers to the cycle of day and night, which is obviously closer to the true solar day.
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The time it takes for the Earth to rotate around is 23 hours, 56 minutes and 4 seconds, which is about 24 hours a day. Rotation refers to the motion of an object to rotate on its own, and the object rotates along an axis that passes through the object itself, which is called the "axis of rotation". Normally, the axis of rotation crosses the center of mass of a celestial body.
Moons, planets, stars, and galaxies that revolve around their own axis are called rotations. The moon rotates once in the same amount of time as it orbits the earth. It's all 27 days, 7 hours, 43 minutes and seconds.
The angle between the Earth's axis of rotation and the ecliptic plane. A sphere that rotates along its axis of rotation.
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How much time does it take for the ball to rotate in one week.
The rotation of the Earth is 23:56:4. The time it takes for the earth to rotate once is about 23 hours, 56 minutes and 4 seconds, and this time is called the sidereal day; On Earth, however, the perceived day is 24 hours, and this is because the chosen reference is the sun. Since the Earth's rotation is also revolutionary, this 4-minute difference is the result of the superposition of the Earth's rotation and revolution.
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One rotation of the earth is one day, that is, 24 hours, and one rotation of the earth is one year, from this point of view, this is the easiest high school geography knowledge, which will help you.
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People usually refer to the rotation of the earth as one day.
The Earth's rotation period is about 23 hours and 56 minutes.
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The rotation of the Earth is 23:56:4 seconds, which is about one day.
The extra time is accumulated over three years, and is added by one day through leap months.
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It takes 23 hours and 56 minutes for the Earth to rotate around in one cycle, which is almost one day.
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The time it takes for the Earth to rotate around is 23 hours, 56 minutes and 4 seconds, which is about 24 hours. The average angular velocity of the Earth's rotation is in degrees and the linear velocity of rotation at the Earth's equator is 465 meters and seconds.
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One day. One rotation of the earth is one day, and one revolution is one year.
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According to the current geographical knowledge, the rotation of the earth is one day.
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the rotation of the Earth, which rotates once every 24 hours relative to the position of the Sun; Relative to the position of the star, it rotates once every 23 hours, 56 minutes and 4 seconds.
The earth revolves around one revolution, which is roughly a "year".
Generally speaking, the vacant day is a leap year, and the extra day in a leap year is counted as an extra day, and every 400 years is counted as an extra 3 days, so generally speaking, a whole hundred years are not a multiplier of 4, and it is not a leap year. In fact, the Earth's rotation rate does not change all the time, and its rotation period increases or decreases by less than three thousandths or fourteenths of a thousand seconds after about ten years.
Uniform rotation is a key fitness exercise method of the earth, everyone should understand that the earth is not shiny and not completely transparent, and the rotation of the earth can make the earth have a day and night cycle. Many scientific studies on the rotation of the earth have not stopped, and the rate of the earth's rotation has also changed. However, in order to better and conveniently count, the rotation of the earth is generally regarded as 24 hours.
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The time it takes for the earth to rotate around is one day.
The time it takes for the earth to rotate once is called a rotation period, which is called a day. Due to the different reference points used for the observation period, there are sidereal days (23 hours, 56 minutes and 4 seconds) and solar days (24 hours).
The Earth's rotation is uneven, with seasonal, long-term and irregular variations. For example, long-term changes in the Earth's rotation slow down the rotation, but this change is not significant, increasing by 1 2 milliseconds per 100 years. The seasonal variation of the Earth's rotation is the slowest in March and April and the fastest in August, but the seasonal daily length changes no more than milliseconds.
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The period of the Earth's rotation is 23:56:4 seconds, also known as a sidereal day.
Usually said 24 hours is the cycle of day and night, that is, what we commonly call a day, although it is related to rotation, but it is not a real rotation cycle, if you do not need to calculate accurately, 24 hours can basically be regarded as the earth rotates a day.
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The time for the earth to rotate around is about 23 hours, 56 minutes and 4 seconds, although it is less than 24 hours, but the earth's rotation is the time of our day.
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The approximate time it takes should be 23 hours, 56 minutes and 4 seconds. And it is also calculated after rigorous calculations.
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It takes about a day, which is clearly defined and regulated, and the rotation of the earth will produce day and night.
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The time it takes for the Earth to rotate around is about 24 hours, which is the time that is clearly calculated.
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: It takes 23 hours and 56 minutes for the Earth to rotate around and increases or decreases by 3 to 4 thousandths of a second every 10 years.
The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the North Pole and clockwise from the South Pole. The Earth's axis of rotation is angled to the ecliptic plane, perpendicular to the equatorial plane. The Earth's rotation is an important form of motion of the Earth, with an average angular velocity of rotation in degrees and a linear velocity of 465 meters and seconds at the Earth's equator.
Extension: Observations from the National Institute of Standards and Technology (NIST) show that the Earth's rotation, which has been slowing down for a long time, has been accelerating since 1999.
NIST's timekeepers claim that in order to align the time of the Earth and the atomic clock, which is based on the speed of the Earth's rotation, a total of 22 leap seconds were added to the Earth's standard clock in the 27 years from 1972 to 1999, but no leap seconds were added after 1999 because the Earth's rotation speed accelerated.
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Since the day is 24 hours, the rotation of the earth is 24 hours.
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The time of the Earth's rotation is 1 day. About 23:56.
The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the north pole and clockwise from the south pole. The Earth's axis of rotation is angled to the ecliptic plane, perpendicular to the equatorial plane.
The Earth's rotation is an important form of motion of the Earth, with an average angular velocity of rotation in degrees and a linear velocity of 465 meters and seconds at the Earth's equator. It takes 23 hours and 56 minutes for the Earth to rotate in one cycle, and about every 10 years, the rotation period increases or decreases by 3/1000 to 4/1,000 of a second.
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"23 hours 56 minutes".
In general, the rotation of the earth bridge is uniform. However, precise astronomical observations have shown that there are three different types of hypersensitization of the Earth's rotation. It takes about 23 hours and 56 minutes for the Earth to rotate around and increases or decreases by 3 to 4 thousandths of a second every 10 years.
The earth rotates from west to east around the axis of rotation of the forest.
The rotation and revolution of the earth cannot be counted as a perpetual motion machine, and this movement of the earth, like the motion of all celestial bodies, is propelled by power. The idea of a perpetual motion machine does not exist in this world because it violates the law of conservation of energy. Since ancient times, there have been some whimsical people who want to make such a thing once and for all, but no one has ever succeeded, and some pseudo-successes have been overturned by later experiments. >>>More
Kicked by the gas in the universe, because the environment in the universe is different from the earth, and the rotation of the earth is also affected by the sun, if the sun does not produce radiation to the earth, the earth will not rotate.
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Moon. The real time for one orbit around the Earth is days, which is the true time for the Moon to orbit the Earth. However, since the earth itself is also orbiting the sun, the time when the moon circles and the earth and the sun at an angle is the sky, which is the synodic month, so the lunar calendar has 30 days of the big month and a small month. >>>More