Physics

Intro to Thermodynamics

What is Heat? Energy is transferred between substances as heat.¬†From a microscopic viewpoint, energy transferred as heat tends to move from an object at higher temperature to an object at lower temperature. This is similar to the mechanical behavior of objects moving from a higher gravitational potential energy to a lower gravitational potential energy. Just …

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Radio Waves

Introduction Radio waves are known to have the longest wavelengths1 and smallest frequencies2 in the electromagnetic system. Their wavelengths range from 30 cm to thousands of meters and their frequency can range from as low as 3 Hz to 1 GHz (equivalent to 1 x 10^9 Hz). To visualize the vast size of radio waves, …

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