A cubic yard of air weighs about 2 pounds at sea level.
31
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
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
No matter how cold it gets, gasoline will not freeze.
107
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Pure water (H2O) does not conduct electricity on its own.
46
A cesium atom in an atomic clock beats over nine billion times a second.
43
Sound travels about 4 times faster in water than in air.
408