Color, Light & Imaging

Pyrogallol

A closer look at Pyrogallol: the structure tells the story.

M-Terphenyl

Three benzene rings can help make invisible radiation visible: m-terphenyl is an aromatic fluor used in modern scintillator chemistry.

Iron oxide

Humans were working with iron oxide chemistry long before chemistry had a name. Some evidence of deliberate ochre processing goes back about 100,000 years.

Sodium thiosulfate pentahydrate

Before digital photography, making an image appear was only half the job. Another chemical was needed to make it survive the light: sodium thiosulfate.