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How Project Mercury Worked
A brief description of how Project Mercury work. This site is part of Marshall Brain's HowStuffWorks.com
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Barometer
Description of how mercury barometers measure pressure.
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TruePhysics
Brief notes concerning Voyager 1 at the edge of the solar system and the messenger launch for Mercury.
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About Superconductivity
Metals are good conductors of electric current. That is, they have very low electrical resistance, but this resistance is not zero. Early in the last century, however, a Dutch physicist discovered ...
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Anomalous Precessions
The precession of the orbits of inner planets, especially Mercury, cannot be accurately described by Newtonian theory but are in close agreement with general relativity. This site also includes ...
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Sam's Fluorescent Lamp FAQ
Fluorescent lamps are a type of gas discharge tube similar to neon signs. A pair of electrodes, one at each end - are sealed along with a drop of mercury and some inert gases (usually argon) at very ...
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Franck-Hertz Experiment
In 1914, James Franck and Gustav Hertz performed an experiment which demonstrated the existence of excited states in mercury atoms, helping to confirm the quantum theory which predicted that ...
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Atmospheric Pressure
The fundamental SI unit of pressure is the Pascal (Pa), but it is a small unit so kPa is the most common direct pressure unit for atmospheric pressure. 1 mm Hg is an old unit of pressure ...
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