From Fort Bowie to Dry Tortugas and Ice Age trail, these are the least-visited national parks in the U.S., including one in ...
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How Thomas Edison used hypnagogia to invent new ideas
Thomas Edison used the hypnogogia state between wakefulness and sleep to generate ideas, napping multiple times a day and ...
When Thomas Edison invented the phonograph, he gave the world its first device that could both record and replay sound. A vibrating diaphragm pressed a stylus into soft wax, carving microscopic ...
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