Sound travels about 4 times faster in water than in air.
408
The bark of an older redwood tree is fireproof.
65
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
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
The only letter not appearing on the Periodic Table is the letter "J".
180