Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
Most of the dust underneath your bed is actually your own dead skin.
251
There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
68 percent of a Hostess Twinkie is air!
37
All the gold ever mined could be molded into a cube 60 feet high and 60 feet wide.
38
You burn more calories sleeping than you do watching television.
348
Macklemore and his hit “Thrift Shop” was the first time since 1994 that a song reached number 1 on the Hot 100 chart without the support of a major record label.
2