Most dust particles in your house come from dead skin.
48
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
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Each day, up to 150 species of life become extinct.
-23
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79