UP, DOWN, AND AROUND

Edge of the EarthJanuary 4th in history:

January 4th is the birthday of Sir Isaac Newton (1643), known for his theories about gravity.

The first man-made satellite to orbit the Earth yielded to gravity and fell out of orbit on January 4th, 1958. Sputnik 1 had been launched exactly three months earlier.

And after spending about three months in the New World, Christopher Columbus began his voyage back to Europe on January 4th, 1493, to prove that he had reached land across the Atlantic without falling off the Earth.

 

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