TED-Ed: What are those colors you see when you rub your eyes? | Paul CJ Taylor

The video explores Newton's experiments with eye safety, focusing on afterimages and visual illusions. It explains how photoreceptors in the retina process light to create images and discusses theories behind positive and negative afterimages. The video also covers pressure phosphines, visual effects caused by physical pressure on the eyes, and other phenomena like cosmic radiation-induced illusions.

What experiments did Newton conduct that violated eye safety?

How do afterimages form inside the retina?

What is the process called when a light photon strikes a pigment?

What happens to photoreceptors when exposed to bright light?

What is the difference between positive and negative afterimages?

What theories exist regarding the origins of negative afterimages?

What are pressure phosphines and how are they generated?