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February 15th Fact-of-the-Day

Trigonometry is fundamentally a study of triangles. The primary focus is on six simple functions defined in terms of the sides of right triangles. Those six functions are known as the sine, cosine, tangent, secant, cosecant, and cotangent. Surprisingly, even though trigonometry is fundamentally just a study of simple relationships in triangles, it happens that oscillating phenomena such as radio waves, light waves, sound waves, water waves, tuned tank circuits, oscillating quartz crystals, electronic oscillators of all kinds, resonant antennas, resonant feed lines, antennas swaying in the wind, and oscillating shock absorbers can be described in terms of trigonometric functions. That is why knowledge of trigonometry is so important to someone interested in technical aspects of radio and more generally in almost any branch of science. ©2005 Martek International All rights reserved.

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