Home
Random
Trending
Today
6
posts added
Search
› added
6 years ago
296
And without it, could I do everything a five-toed human does?
Read more
popsci.com
neyno
TIL the numbers (1-10) that we use every single day were actually made by Indians and spread by Arabs who found it very easy to use and adopted it into mathematics and is actually called Arabic numerals, because Europeans discovered it via the Arabs during the 6th century. Is this common knowledge?
p8NvA
TIL about HERA, a telescope searching for the oldest stars in the universe, from a period known as the Cosmic Dark Ages. And it is built from stuff you could buy at any local hardware store. "This is the beauty of low frequency radio astronomy: one doesn’t need custom, expensive hardware."
mKvx
TIL: Before alarm clocks there were ‘knocker-ups’ in Britain and Ireland who went knocking door to door with a large stick.
ADB
TIL that the original title for the show Friends was supposed to be Insomnia Cafe.
LkgV0
TIL that the Russian space agency decided to turn an old space suit into a satellite. The result looked like an astronaut stranded in outer space.