Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Sunflowers can be used to clean up radioactive waste.
17
There is a fake village with fake shops and restaurants that is actually a care home for elderly dementia sufferers in the Netherlands.
7
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
80% of millionaires drive used cars.
68
There are more nerve cells in the human brain than there are stars in the Milky Way.
349


