Out of all the senses, smell is most closely linked to memory.
146
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Balsa wood is classified as a hard wood!
41
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
Nylon is made from coal and petroleum.
42
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39