Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18
The WD in WD-40 stands for Water Displacer.
30
The first household refrigerators cost about $16,000, in today's money!
47
In the U.S., more than 10% of lottery prizes go unclaimed!
55
People who laugh more are better able to tolerate pain - both physical and emotional.
36
More Americans have died in car accidents than have died in all the wars ever fought by the United States.
55
Fine-grained volcanic ash can be found as an ingredient in some toothpastes.
55

