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Earth’s Orbital Velocity
As Already Discussed Newton’s equation to calculate the sun’s gravitational force acting upon Earth, and…
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Using Parallax to Measure Distance
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of…
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Optically Measuring Cosmic Distances
Last topic we learned that the bigger an optical rangefinder, the better its accuracy in…
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Optical Rangefinders, Why Bigger is Better
Last time we discussed the fact that ultra fine gradations must be applied to a rangefinder’s indicator…
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Further Limitations of an Optical Rangefinder
As We discussed earlier that when optical rangefinders are used to measure the distance to…
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The Principle of Parallax
We’ve been looking at the indirect methods employed by scientists through the ages as they…
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Newton’s Law of Gravitation and the Universal Gravitational Constant
Last time we discussed the term acceleration of gravity, a physical phenomenon posited by Sir…
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Equations Used to Manipulate Torque Relative to Horsepower
Already we learned that we can get more torque out of a motor by using…
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The Mathematical Link Between Gears in a Gear Train
Previously we analyzed the angular relationship between the Force and Distance vectors in this simple gear train. here we’ll…
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Pulleys as a Work Input-Outut Device
In our previous topic we saw how adding extra pulleys resulted in mechanical advantage being doubled, which…