Scientists in Germany have developed a candy that doesn't cause cavities.
11
Out of all the senses, smell is most closely linked to memory.
146
One third of the electricity produced on earth is used to power electric light bulbs!
75
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
In zero gravity, a candle's flame is round and blue.
16
Nearly 50% of the world's scientists are assigned to military projects.
71
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9