The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
There are 2,500,000 rivets in the Eiffel Tower.
98
On average, every dollar bill you touch has over 3,000 different types of bacteria.
8
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
When Heinz ketchup leaves the bottle, it travels at a rate of 25 miles per year.
127
‘Tree shaping’ is the art of growing trees and roots into things like bridges, chairs, “people trees”, ladders, fences, jungle gyms, tunnels, and, theoretically, could even be used to grow homes.
3