One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Sound at the right vibration can bore holes through a solid object.
134
Hot water can freeze faster than cold water.
181
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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
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
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116