One barrel of petroleum holds 42 gallons.
20
A cubic yard of air weighs about 2 pounds at sea level.
31
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The only letter not appearing on the Periodic Table is the letter "J".
180
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Nylon is made from coal and petroleum.
42
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
One cubic foot of gold weighs more than 1,200 pounds!
78