To get a song out of your head, try doing something like a puzzle or Sudoku.
13
When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
The New York Stock Exchange started as a coffee shop!
99
It's impossible to sink in the Dead Sea without equipment!
72
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Water is actually naturally blue.
48
The first household refrigerators cost about $16,000, in today's money!
47
20252 is Smokey the Bear's own zip code.
35