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What is Pasteurization? In 1864, a French man named Louis Pasteur discovered that liquids such as milk could be heated to a temperat...

What is Radioactivity? Radioactivity is the process whereby unstable atomic nuclei release energetic subatomic particles. The word  ra...

Confederation Agreed to by Congress November 15, 1777; ratified and in force, March 1, 1781. Preamble To all to whom these Presents shall ...