Hot water can freeze faster than cold water.
181
German chemists made a replica of a trophy the size of one molecule.
68
Indoor pollution is 10 times more toxic than outdoor pollution.
62
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Nearly 50% of the world's scientists are assigned to military projects.
71
Pure water (H2O) does not conduct electricity on its own.
46
Sound travels about 4 times faster in water than in air.
408