Balsa wood is classified as a hard wood!
41
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Hot water can freeze faster than cold water.
181