Scientists in Germany have developed a candy that doesn't cause cavities.
11
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Pure water (H2O) does not conduct electricity on its own.
46
The storage capacity of human brain exceeds 4 Terrabytes.
140
Pumice is the only rock that floats on water.
14
One 75-watt bulb gives more light than three 25-watt bulbs.
57
