Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Cold water weighs more than hot water.
93
Scientists aren't sure what color dinosaurs were.
312
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Your brain is 80% water.
525