Out of all the senses, smell is most closely linked to memory.
146
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
One barrel of petroleum holds 42 gallons.
20
One cubic foot of gold weighs more than 1,200 pounds!
78
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18