The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
No matter how cold it gets, gasoline will not freeze.
107
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One 75-watt bulb gives more light than three 25-watt bulbs.
57
One third of the electricity produced on earth is used to power electric light bulbs!
75
Out of all the senses, smell is most closely linked to memory.
146