Engraved title page crowded with scenes of mirrors, rainbows, refraction and burning ships. — Title page of Opticae thesaurus (1572), the printed Latin edition of Ibn al-Haytham's Book of Optics.
Image: Unknown engraver, title page of Opticae thesaurus (Basel, 1572), Bavarian State Library · Public domain

A Knaph story

The Story of Light

How people found out what they were seeing with

c. 450 BCE – 1986

From a fire thought to shine out of the eye to single photons counted one by one: the people, the arguments and the experiments that showed what light is.

A Knaph story

The Story of Light

How people found out what they were seeing with

c. 450 BCE – 1986

From a fire thought to shine out of the eye to single photons counted one by one: the people, the arguments and the experiments that showed what light is.