The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Passengers on the Beijing subway can pay with plastic bottles.
29
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
The streets of Victor, Colorado, once a gold rush town, are paved with low-grade gold.
78
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
The first household refrigerators cost about $16,000, in today's money!
47