Cal Chalk
Cal Chalk3
Mingyu Jeung’s “Math powered” light

Everything we create is designed to respond instantly to our whims but what if our world were set up like the game Myst. You couldn’t do anything without solving a convoluted, yet simple puzzle first. Thats the idea behind this math based lamp by designer Mingyu Jeung. To turn it on, you have to solve a randomly generated math problem. Don’t fret, it’s set on chalkboard for the numerically challenged.