The average home creates more pollution than does the average car.
33
Your brain is 80% water.
525
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Diamonds can be shattered with a hammer.
-104
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
