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19 Cards in this Set

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  • Back
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Pythagoras's theory
he thought light consisted of beams from a persons eyes
Euclid
discovered that when you shine a light at a flat mirror, the angle between the incoming beam and the mirror is equal to the angle between the incoming beam and the mirror.
Ptolemy
describe how light beams bend when they go from air to glass.
al-haytham
accurately describe how vision worked: light bounces then travels to the eye.
Isaac newton
English scientist that explained rainbows. white light to prism are mixture of colours. and when transferred to another prism it'll turn white.
ole romer
made reasonably accurate measurement of the speed of light
Albert a. Michelson
refined ole romers measurement. he calculated the speed of light
properties of light:
travels in straight lines
can reflect
can bend
form of energy
optical device
any device that uses light. Mirror microscopes, telescopes, binocular
Hans and Zacharias jansen
first microscope
first microscope
antonie von leeuwenhoek
experimented his own microscopes to magnify small things.
microbiology
study of micro organisms
microscope
optical device used for viewing very small objects: objective lenses and the eyepiece lens.
telescopes
optical device for viewing distant objects: reflecting & refracting telescopes
galileo
made amazing discoveries with telescopes
characteristics of a telescope
magnifies
collects light
refracting t.
uses 2 lenses to form enlarge image.
reflecting t.
uses curved mirror and lens to form an enlarge image.
binoculars
viewing distant objects made up of 2 short refracting telescopes fitted together .