A Summary Of The Physics Of Drag (Wind Resistance)
This is a written explanation of the basic principles of air resistance, or "drag". Drag is the force applied by a gas in opposition to an object's motion through said gas. Air resistance was first observed by Galileo Galilee, when, in 1590, he dropped several spheres of equal sizes and shapes but different densities off of the leaning tower of Pisa, in Italy. Previous to his experiments, it was commonly believed that objects fell at speeds proportional to their weights. This was disproved when Galileo observed that two balls of equal size and shape but unequal mass, when dropped at the same time, would hit the ground at the same time. He also noticed that two objects of equal mass but unequal shapes would NOT hit the ground at the same time. In other words, he observed that an objects speed through the air was dependent upon its shape, not it's weight. From this he concluded that there must be some force opposing them as they moved through the air – Air resistance. Fluid Dynamics is the study of the laws governing fluids (non-solids). Aerodynamics is the physics of non-fluids (solids) moving through gaseous flui
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Approximate Word count = 756
Approximate Pages = 3 (250 words per page double spaced)
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