Nearly 50% of the world's scientists are assigned to military projects.
71
Liquid TIDE laundry detergent glows under a blacklight.
96
The bark of an older redwood tree is fireproof.
65
Pumice is the only rock that floats on water.
14
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Out of all the senses, smell is most closely linked to memory.
146