The smell of freshly cut grass is actually a plant distress call.
31
A ball of glass will bounce higher than a ball made of rubber.
73
One barrel of petroleum holds 42 gallons.
20
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Research indicates that plants grow healthier when they are stroked.
173
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16