History of light Flashcards
Which historic people are related to the ancient Greeks?
Pythons, Euclid and Ptolemy
Who was pythons?
he thought beams of light came from our eyes and sensed things. (false)
Who was euclid?
observed that when light reflects off a mirror, the angle of the incoming beam is equal to that of the outgoing beam. (true)
Who was ptolemy?
light bends when it travels from air to glass, (true)
Who was al haytham?
he discovered that light reflects off objects and travels to our eyes, (true)
Who was involved in the history of light in the 1600s?
Isaac newton and ole romer
Who was isaac newton?
he shone light through a prism and found that white light is a mixture of different colors. (true)
Who was ole romer?
he first measured the speed of light
Who was albert a.michelson?
he more correctly determined the speed of light to be about 300,000/s. Timed a beam of light from a mirror on a mountain to a mirror on another mountain.
