GEO 110 Lecture Notes - Lecture 2: Radiant Energy, Solar Wind, Dowsing
25 Sep 2017
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Document Summary
If you heat something, the larger its volume will expand. Temperature scales: thermometers detect (senses) the movement of molecules to register temperature, fahrenheit and celsius scales are calibrated to freeing and boiling water, but the celsius range is 1. 8 times more compact. Conduction heat transfer: conduction of heat energy occurs as warmer molecules transmit vibration, and hence heat, to adjacent cooler molecules, warm ground surface heat overlying air by conduction, northern hemisphere has more land mass. Wave model of em energy: an electromagnetic wave is composed of electric magnetic vectors that are orthogonal to one another and travel from source at the speed of light (3 x 108 m s-1) Wavelengths/ frequency: more frequency, short wavelengths, more wavelengths, short frequency. Source of em energy: the sun yields a continuous spectrum of em energy, this process produces a large amount of short wavelength energy (from 0. 4 0. 7 (cid:2020)m; blue, green, and red light)
