Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Sound at the right vibration can bore holes through a solid object.
134
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Aluminum used to be more valuable than gold!
84
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
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