There was once an undersea post office in the Bahamas.
241
Play-Doh was first manufactured as a wallpaper cleaner.
122
There are 293 ways to make change for a dollar.
148
The WD in WD-40 stands for Water Displacer.
30
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
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 lipstick contains fish scales!
46