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
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
Play-Doh was first manufactured as a wallpaper cleaner.
122
U-Haul is the world's largest advertiser in the Yellow Pages.
21
The odds of being killed by falling out of bed are one in two million.
136
The best diamonds are colored blue-white.
80
There are 2,500,000 rivets in the Eiffel Tower.
98
