Carbon Dating From The Skies
Physics / Radioactivity
Determining the age of relatively recent fossils, those of plants and animals that lived tens of thousands of years ago, is not a guessing game but an exact science. By using carbon dating we can dete continue reading this fact
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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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Nuclides & Isotopes
Physics / Radioactivity
An atom that has an unbalanced ratio of neutrons to protons in the nucleus seeks to become more stable. The unbalanced or unstable atom tries to become more stable by changing the number of neutrons a continue reading this fact
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