Nylon is made from coal and petroleum.
42
One barrel of petroleum holds 42 gallons.
20
Aluminum used to be more valuable than gold!
84
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Most dust particles in your house are made from dead skin!
67
The force of a suction cup is calculated using F=AP.
15
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57