The earth revolves once every 23 hours, 56 minutes, and 4.09053 seconds, and its diameter is about 40,075 kilometers. At the equator, the earth's surface travels at a velocity of 460 meters per second, or around 1,000 miles per hour. This means that all the continents except for Antarctica travel across the globe twice each day.
Antarctica itself never moves relative to any other object. It is therefore impossible for anything to travel over Antarctica. All we can say for sure is that it takes Antarctica more than 24 hours to complete one rotation.
Thus, the total distance traveled by the earth in an hour is about 40,000 kilometers - or 25,000 miles.
This answer is based on the fact that the earth is a sphere. If you were to live on a flat plane, then the distance would be less because they would only be moving half of the planet at a time.
Consider how the Earth's surface moves in relation to the planet's core. So, it sweeps out a circle of this size in 1 day. This is called an orbit.
Why does my car's clock lose time while it is driven back and forth across the country? Because the Earth's axis of rotation is not straight ahead and aft, but leans ever so slightly to one side. When a car is driven east, the center of the Earth is passed to the left; when driven west, the center is passed to the right. Thus, the car's watch loses time because it is traveling around the world while keeping correct local time.
Does the Earth go around the Sun or the other way around? Both theories have their supporters. Actually, the Earth goes around the Sun, but it takes 12 years for us to go around the sun once. During that time, we travel from the Winter Solstice to the Summer Solstice, and back again.
What is wrong with using absolute zero as the temperature reference? Absolute zero is the theoretical minimum temperature possible according to quantum mechanics. It corresponds to a temperature of -273.15 degrees Celsius.
Every 24 hours, the Earth rotates on its own axis (or, to be precise, every 23 hours, 56 minutes and 4 seconds). The Earth's diameter is 24,898 miles (40,070 kilometers), therefore when distance is divided by time, the globe spins at 1,037 mph (1,670 km/h).
This speed may surprise you. It's about 20 percent faster than what most people think it is. The reason why scientists were able to calculate such a number has to do with something called "equatorial bulge." As the name suggests, this is a region of increased density in the equator that causes it to bulge out a little bit. All up, the Earth is spinning at 790-820 mph (1242-1320 km/h) at the surface.
People have been measuring the length of a day for hundreds of years using very accurate clocks. In 1873, American astronomer William C. Redfield accurately measured the length of a day to within one second. He did this by creating the first global positioning system (GPS) and planting an atomic clock at the U.S. Naval Observatory in Washington, D.C. Since then, more accurate watches have come onto the market, but GPS technology has become increasingly popular as a tool for scientists to find their way around the world in studies about climate change, geology, and other topics.
Every 24-hour day, the Earth rotates on its axis once. The speed of the Earth's rotation at the equator is around 1,000 miles per hour (1,600 km per hour). At the poles, it is almost 2,000 miles per hour (3,200 km per hour).
This means that if you were standing still on the surface of the Earth, you would see all objects around you rotate once every 24 hours. The entire sky would appear to be moving once during each rotation.
If you were riding in a vehicle that was moving steadily along with the Earth's rotation, you would also see everything around you rotating once every 24 hours.
However, if you were in this vehicle and looked out the window, you would see that some parts of the landscape were passing by quickly and others not at all. If you were using your own body as the reference point for time, then you would experience daily life as being divided into two very different types of period: those where you are doing things slowly (such as when you sleep) and those where you are experiencing rapid changes (such as when you wake up in the morning).
In reality, however, there is only one type of period that can be experienced by everyone: that of Earth's rotation.
NASA.gov provided the image. It takes 23 hours, 56 minutes for the Earth to completely rotate on its axis.
The Earth orbits the Sun at a distance of about 150 million miles (250 million km), so almost all of the surface of the Earth is exposed to sunlight at some time during the year. But because the plane of the Earth's orbit is tipped by about 5 degrees with respect to the orbital plane of the Sun, some parts of the planet are illuminated for more than half of each year and others for less than half. For example, during spring and summer, the far northern and southern hemispheres get direct sunlight for approximately six months out of every year. During winter and fall, the far northern and southern hemispheres get no direct sunlight at all.
From these observations it follows that the entire surface of the Earth is always either facing towards or away from the Sun, but not both at the same time. Day and night occur when the Earth is either fully illuminated or fully concealed by darkness. During a full moon, the Earth's shadow falls on every part of it; there is a lunar eclipse whenever the Moon passes into this shadow.