There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
15
The word "impossible" dropped in use by 50% over the course of the 20th century
5
Rio de Janeiro was once capital of Portugal, making it the only European capital outside of Europe.
9
Chocolate is lower in caffeine than tea, coffee and coca cola. A one ounce bar of chocolate contains about 6mg of caffeine, whereas a five ounce cup of regular coffee contains over 40mg.
114
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1