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Who said: “Dangerous... to take shelter under a tree, during a thunder-gust. It has been fatal to many, both men and beasts.”
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Home > Category Index for Science Quotations > Category Index E > Category: Equator

Equator Quotes (6 quotes)

However, the small probability of a similar encounter [of the earth with a comet], can become very great in adding up over a huge sequence of centuries. It is easy to picture to oneself the effects of this impact upon the Earth. The axis and the motion of rotation changed; the seas abandoning their old position to throw themselves toward the new equator; a large part of men and animals drowned in this universal deluge, or destroyed by the violent tremor imparted to the terrestrial globe.
Exposition du Système du Monde, 2nd edition (1799), 208, trans. Ivor Grattan-Guinness.
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One orbit, with a radius of 42,000 kilometers, has a period of exactly 24 hours. A body in such an orbit, if its plane coincided with that of the Earth’s equator, would revolve with the Earth and would thus be stationary above the same spot on the planet. It would remain fixed in the sky of a whole hemisphere ... [to] provide coverage to half the globe, and for a world service three would be required, though more could be readily utilized. (1945) [Predidicting geosynchronous communication satellites]
In 'Can Rocket Stations Give Worldwide Coverage?', Wireless World (Oct 1945). Quoted and cited in Arthur C. Clarke, Greetings, Carbon-Based Bipeds!: Collected Essays, 1934-1998, 22.
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The earth and its atmosphere constitute a vast distilling apparatus in which the equatorial ocean plays the part of the boiler, and the chill regions of the poles the part of the condenser. In this process of distillation heat plays quite as necessary a part as cold.
In Forms of Water in Clouds and Rivers, Ice and Glaciers (1872), 21.
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The long summer was over. For ages a tropical climate had prevailed over a great part of the earth, and animals whose home is now beneath the Equator roamed over the world from the far South to the very borders of the Arctics ... But their reign was over. A sudden intense winter, that was also to last for ages, fell upon our globe.
Geological Sketches (1866), 208.
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The world’s first spaceship, Vostok (East), with a man on board was launched into orbit from the Soviet Union on April 12, 1961. The pilot space-navigator of the satellite-spaceship Vostok is a citizen of the U.S.S.R., Flight Major Yuri Gagarin.
The launching of the multistage space rocket was successful and, after attaining the first escape velocity and the separation of the last stage of the carrier rocket, the spaceship went in to free flight on around-the-earth orbit. According to preliminary data, the period of revolution of the satellite spaceship around the earth is 89.1 min. The minimum distance from the earth at perigee is 175 km (108.7 miles) and the maximum at apogee is 302 km (187.6 miles), and the angle of inclination of the orbit plane to the equator is 65º 4’. The spaceship with the navigator weighs 4725 kg (10,418.6 lb), excluding the weight of the final stage of the carrier rocket.
The first man in space was announced by the Soviet newsagency Tass on 12 April 1961, 9:59 a.m. Moscow time.
Tass
Quoted in John David Anderson, Jr., Hypersonic and High Temperature Gas Dynamics (2000), 2.
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Vous avez trouve par de long ennuis
Ce que Newton trouva sans sortir de chez lui.
In Letter to La Condamine, whose surveying expedition (after Newton’s death) had measured the arc at the equator. As Newton had calculated, the Earth was a flattened sphere, due to the effects of rotation and gravitational pull. Roughly translates as, “You have found by prolonged difficulty / What Newton found without leaving home.” In The Royal Society Newton Tercentenary Celebrations: 15-19 July 1946 (1946), 15. [Newton was born in 1642; the tercentenary celebration was delayed by WW II —Webmaster.]
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Carl Sagan Thumbnail In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
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