Prism

A prism decomposes light.

Light is resolved by a prism into seven colors.

A beam of white light is split by a prism into rays of various colors.

Inside the prism, violet light slows down more than red light.

How many vertices and faces does a pentagonal prism have?

There is no such thing as true objectivity. We all perceive the world subjectively, through the prism of our experiences and beliefs.

When white light shines through a prism, the light is separated into all its colors.

If from a transparent prism of tourmaline two thin plates are cut, parallel to its axis, they will transmit light when they are placed above each other with the chief axis of each in the same direction.

[page 13] One of theſe Parts [of a piece of black paper] I painted vvith a red Colour and the other vvith a blevv. […] This Paper I vievved through a Priſm of ſolid Glaſs, vvhoſe tvvo Sides through vvhich the Light paſſed to the Eye vvere plane and vvell poliſhed, and contained an Angle of about Sixty Degrees: vvhich Angle I call the refracting Angle of the Priſm. […] [page 17] Theſe Experiments may ſuffice for the Colours of Natural Bodies. For in the Colours made by the Refraction of Priſms this Propoſition vvill appear by the Experiments vvhich are novv to follovv in the next Propoſition.

Here, avvful [Isaac] Newton, the diſſolving clouds / Form, fronting on the ſun, thy ſhovvery priſm; / And to the ſage-inſtructed eye unfold / The various tvvine of light, by thee diſclos'd / From the vvhite mingling maze.