› added 7 years ago

268

TIL the rarest element on Earth is the halogen Astatine. It’s so rare that only 30 grams of it can be found at any point in time on Earth, and only 0.05 micrograms of it has been produced to date. Most of its properties are unknown and no one has ever seen it in its natural form.

Read more chemicool.com

via ift.tt

nev6Y TIL Hawaii is made up of hundreds of islands that span 1500 miles, not just the 8 that most people know
oBNNY TIL Infinite sets are not all created equal, however. There are actually many different sizes or levels of infinity; some infinite sets are vastly larger than other infinite sets.
oBjW7 TIL that there's a stonehenge at the bottom of Lake Michigan
dDm0d TIL The term 'mosh pit' was birthed in 1979 when H.R., vocalist of D.C. hardcore band the Bad Brains, saw some audience members slam dancing and shouted "mash it - mash down", but because of his faux Jamaican accent, some audience members heard this as "mosh it" and that is the term that stuck.
gr6j8 TIL the BBC payed closely to 1.1 million pounds in restitution and 1.4 million pounds in donations, losing in the process the sole production of the Queen's Royal Christmas Message due to the famous Diana interview, which was obtained under "questionable means".