Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
On average, the life span of an American dollar bill is eighteen months.
33
Group "brainstorming" makes each individual in the group less creative and doesn't work as efficiently as the same number of people working alone and then later pooling their ideas.
10
The New York Stock Exchange started as a coffee shop!
99
If you chew gum when you study a subject and then chew the same flavor when you take the test, it will help you remember!
34
Only 8% of the world’s currency is physical money. The rest exists only on computers.
20
The first household refrigerators cost about $16,000, in today's money!
47