History of Light Flashcards
What were some ancient greek people who contributed to the history of light?
Pythagoras, Euclid Ptolemy
How did Pythagoras contribute to the history?
Though beams of light come from our eyes and sense things. (False)
How did Euclid contribute to the history?
Observed that when light reflects off a mirror, the angle of the incoming beam is equal to that of the outgoing beam. (True)
What did Ptolemy do?
Said that light bends when it travels from air to glass.
What did Al Haytham do?
Found out that light reflects off objects and travels to our eye in the middle ages, true.
What did Isaac Newton do?
Shone light through a prism and found that white light is a mixture of different colors in the 1600s, true
What did ole romer do?
First measured the speed of light in the 1600s
What did Albert A.Michelson do?
More accurately determined the speed of light to be about 300,000/s. Timed a beam of light from a mirror on one mountain to another in the 1920s