Sound travels fifteen times faster through steel than through air.
134
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
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Balsa wood is classified as a hard wood!
41
A ball of glass will bounce higher than a ball made of rubber.
73
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21