If the chemical sodium is dropped into water it will immediately and violently explode.
67
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
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
The average home creates more pollution than does the average car.
33
Pure water (H2O) does not conduct electricity on its own.
46