Prague, Czech Republic

Physics of the Earth and Planets

Table of contents

Physics of the Earth and Planets at Charles University in Prague

Language: English Studies in English
Subject area: physical science, environment
University website: www.cuni.cz
Years of study: 4

Definitions and quotes

Earth
Earth is the third planet from the Sun and the only object in the Universe known to harbor life. According to radiometric dating and other sources of evidence, Earth formed over 4.5 billion years ago. Earth's gravity interacts with other objects in space, especially the Sun and the Moon, Earth's only natural satellite. Earth revolves around the Sun in 365.26 days, a period known as an Earth year. During this time, Earth rotates about its axis about 366.26 times.
Physics
Physics (from Ancient Greek: φυσική (ἐπιστήμη), translit. physikḗ (epistḗmē), lit. 'knowledge of nature', from φύσις phýsis "nature") is the natural science that studies matter and its motion and behavior through space and time and that studies the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves.
Physics
The physicist ... engages in complex and difficult calculations, involving the manipulating of ideal, mathematical quantities that, at first glance, are wholly lacking in the music of the living world and the beauty of the resplendent cosmos. It would seem as if there exists no relationship between these quantities and reality. Yet these ideal numbers that cannot be grasped by one's senses, these numbers that only are meaningful from within the system itself, only meaningful as part of abstract mathematical functions, symbolize the image of existence. ... As a result of scientific man's creativity there arises an ordered, illumined, determined world, imprinted with the stamp of creative intellect, of pure reason and clear cognition. From the midst of the order and lawfulness we hear a new song, the song of the creature to the Creator, the song of the cosmos to its Maker.
Joseph B. Soloveitchik, Halakhic Man (1983), pp. 83-84
Earth
But the nations became wrathful, and your own wrath came, and the appointed time came for the dead to be judged and to reward your slaves the prophets and the holy ones and those fearing your name, the small and the great, and to bring to ruin those ruining the earth.
Book of Revelation 11:18.
Earth
Simonson, in rubber jacket and similar galoshes, bound with whip-cord over woolen socks (he was a vegetarian and did not use the skin of animals), was also awaiting the departure of the party. He stood near the entrance of the house, writing down in a note-book a thought that occurred to him. “If,” he wrote, “a bacterium were to observe and analyze the nail of a man, it would declare him an inorganic being. Similarly, from an observation of the earth’s surface, we declare it to be inorganic. That is wrong.”
Leo Tolstoy, Resurrection (1899), translated by William E. Smith, ch. 83.
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