The average temperature at 40,000 feet above sea level is -60 F.
56
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
One third of the electricity produced on earth is used to power electric light bulbs!
75
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Iron weighs more after it rusts.
16
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21