Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Sound at the right vibration can bore holes through a solid object.
134
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One 75-watt bulb gives more light than three 25-watt bulbs.
57