Step into the hidden science lab in your kitchen with five easy experiments that explain refraction, surface tension, ...

Photography uses light to make a chemical change and create an image. The Anthotype/Sun Print activity in this issue of Celebrating Chemistry (located on pg. 11) is an example of a chemical change ...

Invisible inks based on “smart” fluorescent materials have been shining brightly (if only you could see them) in the data-encryption/decryption arena lately ...

An invisible coating allows the surface of pills or sweets to be marked with a low-power laser. A small UK company has developed a range of food additives that allow a low-power laser to mark the ...

People have always wanted to communicate privately. There once was a time when regular ink was secret enough, because not much of the world knew how to read. Then literacy ruined it for everyone, and ...