"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

“It has no justification in experiment exactly; it just represents something that he’s imposing upon the color spectrum by analogy with music.” Of his rainbow experiment Newton wrote that he had ...

A rainbow is a spectrum of visible light ... A scientific tool that can do the same thing is called a spectroscope (early spectroscopes used prisms). You can make your own spectroscope by following ...

Light on the meat's surface reflects off its muscle fibres and proteins, creating a rainbow spectrum of colours ... acts like a prism, splitting the light into individual colours.

A rainbow contains all the colours of the visible spectrum. It is often possible ... Light is refracted when it enters the prism, and each colour is refracted by a different amount.

The standard design is simple; a prism or diffraction grating to break up a light source into a spectrum and a detector ... The almost-a-rainbow’s-worth of LEDs are mounted on circular PCB ...