› added 5 years ago

113

TIL it costs more than one cent to physically create one cent.

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gMENW TIL Some 'erasable' pens don't erase their ink. Instead it changes colour to become invisible.
5YJrp TIL that the Burj Khalifa is so tall, that residents above the 80th floor must wait two to three minutes longer to break their fast during Ramadan because you can see the sun for longer than you can on lower levels.
kKl5 TIL the US gov has held a stockpile of 1 billion cubic meters of helium since 1925. This is due to post WW1 fear that we may run out of helium in case of blimp warfare.
b6R89 TIL that blueberries (and cranberries) are true berries, produced from a single ovary with non permeable skin. Raspberries, blackberries, and strawberries, on the other hand, whose tissue holds hundreds of ovaries with permeable surfaces, are made up of smaller fruits.
Z81vD TIL The DEA raided Thomas Jefferson's Monticello estate in 1987. It removed the poppy plants that had been planted continually there since Jefferson was alive and using opium from them.