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
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The only letter not appearing on the Periodic Table is the letter "J".
180
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21