Lasers and fluorescence

Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect.

Light is made up of wavelengths of light, and each wavelength is a particular colour. The colour we see is...

Have you ever looked at fish in a tropical aquarium? Some of them seem to have markings or patches of...

Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect.