Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
There are over 16,251 full-service restaurants in the vicinity of NYC. You could visit one every day for 40 years and still not have visited them all. This excludes counter service restaurants and cafeterias.
5
In many countries, urine was used as a detergent for washing.
17
Couples' personalities converge over time to make partners more and more similar.
235
You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
209
Wearing red increases attraction.
30
In 1997, a survey reported that 12% of Americans think that Joan of Arc was Noah's wife.
48