Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Out of all the senses, smell is most closely linked to memory.
146
Billions of neutrinos pass unnoticed through your body every second.
6
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Most dust particles in your house are made from dead skin!
67
Nylon is made from coal and petroleum.
42