The yin-yang pattern's earliest use is in Rome - not China!
125
Sunflowers can be used to clean up radioactive waste.
17
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
The human eye blinks an average of 4,200,000 times a year.
233
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
A typical full-time worker in the US with a four-year college degree earns about $50,000. This is 62% more than a worker with only a high-school diploma.
72