Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Sound travels about 4 times faster in water than in air.
408
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Iron weighs more after it rusts.
68