A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
According to studies, men change their minds two to three times more often than women.
72
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
In zero gravity, a candle's flame is round and blue.
16
Iron weighs more after it rusts.
68