In the 3rd century BC, Aristarchus of Samos calculated thesize of the Earth, and measured the size and distance of the Moon and Sun, and was the first to propose a heliocentric model of the solar system.
Scientists at a Japanese university said Thursday they believed another planet up to two-thirds thesize of the Earth was orbiting in the far reaches of the solar system.
つまり、科学者は地震の大きさに制限を設けていませんが、地球の大きさからは限界があります。
The magnitude scale is open-ended, meaning that scientists have not put a limit on how large an earthquake could be, but there is a limit just from thesize of the earth.
The Milky Way contains at least 17 billion planets the size of Earth, and likely many more, according to a study that raises the chances of discovering a sister planet to ours.
The nerve endings on fingers are so sensitive that if your fingers were the size of Earth, you could still feel the difference between a house and a car.
The Milky Way contains at least 17 billion planets the size of Earth, and likely many more, according to a study out Monday that raises the chances of discovering a sister planet to ours.
It's amazingly thin, compared to the size of the earth and the cosmos it shields us from, far thinner than the skin of an apple compared to its diameter.
His analysis was based on a text by Theon of Smyrna which states that Hipparchus found the Sun to be 1880 times thesize of the Earth, and the Earth 27 times the size of the Moon.
While Earth's tectonics and other forces have erased most of the evidence from its history, it is believed that much of Mars- which is about one-third of thesize of the Earth- has remained relatively static for more than 3 billion years, creating a Geological machine for scientists.
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