Diamonds mined in Brazil are harder than those found in Africa.
40
You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
209
American car horns beep in the tone of F.
66
There is a fake village with fake shops and restaurants that is actually a care home for elderly dementia sufferers in the Netherlands.
7
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
The first household refrigerators cost about $16,000, in today's money!
47
In an average hour, there are over 61,000 Americans airborne over the United States.
24