Asteroids

What are asteroids? Asteroids are small, rocky bodies that orbit the sun. Most of them reside in the asteroid belt, which is a region located between Mars and Jupiter, but asteroids can also be found all throughout the solar system and in the oort cloud.  Asteroid Size? Asteroids range in size from Vesta—the largest at …

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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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Wind Power

Introduction:     Wind power is an alternative method of energy production which uses the mechanical energy of the wind to generate electricity. It is the fastest growing source of renewable energy and can efficiently produce electricity in a cost effective manner. How it Works: Wind turbines convert the mechanical energy of the wind to mechanical …

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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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