Discover the origin of the rainbow

Isaac Newton

It has long been known that rainbows occur when the sun simultaneously shines with the rain. Rain drops change the white light of the sun into different colors.

Isaac Newton proved this in 1665 by placing a glass prism under a sun ray: he received the colors of the rainbow through diffraction, also demonstrating that white light is in fact The result of the mixing of the rainbow colors. Small droplets of rainwater act like small prisms and form a rainbow.

In order not to let any skepticism exist, Isaac Newton used another lens under the multicolored ray created by the first prism and he also received a new white ray - the second prism gathered colors to produce white light.

In 1668 Newton invented the telescope. This glass uses a concave mirror instead of one of the telescope's lenses. Today's telescopes are always structured on the same principle.

Learn about Isacc Newton scientist "the founder of classical physics"