* The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear. *
* 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. *
* You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them. *
* If left alone, 70% of birthmarks gradually fade away. *
* Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night. *
* If you get water flowing fast enough, it can cut metal. *
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