The Equivalence Principle
Physics / Quantum Mechanics
Four hundred years ago--or so the story goes--Galileo Galilei started dropping things off the Leaning Tower of Pisa: Cannon balls, musket balls, gold, silver and wood. He might have expected the heavi continue reading this fact
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Aerosol Sprays
Physics / Fundamentals
Liquid forced through a small orifice under pressure will come out Is a spray of fine droplets, or mist, rather than as a stream, or jet. A 'squirt gun' works the same way, as does the kitchen faucet continue reading this fact
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X-Rays - Another Form of Light
Physics / Fundamentals
A new form of radiation was discovered in 1895 by Wilhelm Roentgen, a German physicist. He called it X-radiation to denote its unknown nature. This mysterious radiation had the ability to pass through continue reading this fact
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