› added 12 years ago

306

TIL it is against the law to be in possession of debris from the space shuttle Challenger.

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R7k19 TIL A clock is being built inside a mountain in Texas that will keep time for 10,000 years with minimal to no human interaction. One of the reasons for building the clock is to get people to think long term.
gM7dX TIL if you put water droplets on a hot pan they never actually touch the pan. A vapor layer forms that makes them float. This phenomenon is an example of the Leidenfrost effect.
KOo44 TIL: Mountain stone wētā can survive being frozen solid over winter. They can survive up to 17 days in temperatures of about -10 °C. At temperatures below -10 °C, approximately 85% of their body water is crystallized, one of the highest ice contents known for any animal.
VkJm TIL that I, V, X, L, C, D, M aren’t the only letters used in roman numerals; “S” is used to represent ½ along with dots for other fractions
W7OnB TIL that 1 WTC is 1776 ft tall