Isaac Newton prism experiments color intrinsic to light

Prisms reveal color already in light

Isaac Newton’s prism experiments showed that color is part of light, not something a prism creates. Objects appear colored through their interaction with light that already has color; they do not generate the color themselves.

Dung beetles can navigate by the Milky Way

Dung beetles can use the bright band of the Milky Way and groups of stars to keep moving in a straight direction at night. They are the only insects known to navigate using the galaxy.

Some subjects preferred groups outside Roman rule

A fifth-century account says some people in the Western Roman Empire preferred joining the Bagaudae, rebel groups outside Roman control, or communities beyond the empire. Injustice, heavy demands for money and corrupt tax collection had made Roman rule unbearable to them.

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Isaac Newton prism experiments color intrinsic to light

Prisms reveal color already in light

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