Most dust particles in your house come from dead skin.
48
Nearly 50% of the world's scientists are assigned to military projects.
71
Your brain is 80% water.
525
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
Iron weighs more after it rusts.
16
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
