Out of all the senses, smell is most closely linked to memory.
146
Aluminum used to be more valuable than gold!
84
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
In zero gravity, a candle's flame is round and blue.
16
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304