Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Research indicates that plants grow healthier when they are stroked.
173
The force of a suction cup is calculated using F=AP.
15
The bark of an older redwood tree is fireproof.
65