Of his rainbow experiment Newton wrote that he had projected white light through a prism onto a wall and had a friend mark the boundaries between the colors, which Newton then named. In his diagrams, ...

If you're high enough in the sky, the rainbow actually appears as a circle. But from the ground, we usually see only one arc. Isaac Newton was the first to figure out why rainbows exist.

Have you ever seen a rainbow in the sky? Rainbows happen when sunlight passes through raindrops in the sky. When this happens, light becomes separated into a rainbow of colors—red, orange ...

New Scientist once described Isaac Newton as “the supreme genius and ... Newton was also the first to understand the rainbow, and to refract white light with a prism into its component colours ...

“A rainbow is actually a full circle ... lower than 42° above the horizon to be precise. Isaac Newton’s work with prisms led to the discovery that white light is made up of seven colours ...

One of its earlier practitioners was Sir Isaac Newton ... of light by investigating a rainbow, but by creating a controllable, repeatable experiment, Newton was able to support his hypothesis ...