Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Iron weighs more after it rusts.
68
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
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
Sound at the right vibration can bore holes through a solid object.
134
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Most dust particles in your house come from dead skin.
48