Scientists aren't sure what color dinosaurs were.
312
Sound travels about 4 times faster in water than in air.
408
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Cold water weighs more than hot water.
93
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
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