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194 BCE
Eratosthenes
Eratosthenes was a greek polymath and he tried to accurately measure the circumference of the earth. -
Feb 19, 1473
NIcolaus Copernicus
e had a theory the sun was near the center of the universe and the earth spinning on its axis once daily. -
Dec 14, 1546
Tycho Brahe
His belief was Heliocentric model of the universe -
Albert Einstein
He created a gas absorption heat pump and also created a refrigerator called the Einstein. -
Johannes Kepler
Johannes Kepler had three laws