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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. [34] The apparent solar time is a measure of Earth's rotation and the difference between it and the mean solar time is known as the equation of time.
Earth at seasonal points in its orbit (not to scale) Earth orbit (yellow) compared to a circle (gray) Earth orbits the Sun at an average distance of 149.60 million km (92.96 million mi), or 8.317 light-minutes, [1] in a counterclockwise direction as viewed from above the Northern Hemisphere.
The world ocean is commonly divided into the Pacific Ocean, Atlantic Ocean, Indian Ocean, Antarctic or Southern Ocean, and Arctic Ocean, from largest to smallest. The ocean covers Earth's oceanic crust , with the shelf seas covering the shelves of the continental crust to a lesser extent.
Yet let's be content, and the times lament, you see the world turn'd upside down. Command is given, we must obey, and quite forget old Christmas day: Kill a thousand men, or a Town regain, we will give thanks and praise amain. The wine pot shall clinke, we will feast and drinke. And then strange motions will abound.
The International Real-time Magnetic Observatory Network, with over 100 interlinked geomagnetic observatories around the world, has been recording the Earth's magnetic field since 1991. The military determines local geomagnetic field characteristics, in order to detect anomalies in the natural background that might be caused by a significant ...
Kim Sullivan Hughes (formerly Reynolds, Dixon, Stewart, Andropoulus, and Hughes) is a fictional character on the CBS soap opera As the World Turns.The character was portrayed by Kathryn Hays continuously from 1972.
Earth Hour is a worldwide movement organized by the World Wildlife Fund (WWF). The event is held annually, encouraging the individuals, communities, and businesses to give an hour for Earth, and additionally marked by landmarks and businesses switching off non-essential electric lights, for one hour from 8:30 to 9:30 p.m., usually on the last Saturday of March, as a symbol of commitment to the ...
This could potentially turn the Earth back into a water world, and even perhaps drowning all remaining land life. [98] The loss of the oceans could be delayed until 2 billion years in the future if the atmospheric pressure were to decline. A lower atmospheric pressure would reduce the greenhouse effect, thereby lowering the surface temperature.