Cold water weighs more than hot water.
93
Iron weighs more after it rusts.
16
Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
16
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Research indicates that plants grow healthier when they are stroked.
173
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79