› added 6 years ago

166

TIL modern Hard Disk Drives have read/write heads that float 4 to 5 nanometers above the surface of the disk while it spins. For scale, a human hair is 80,000-100,000 nm thick.

Read more nano.gov

via reddit.com

0wKe1 TIL that David Bowie's performance of Heroes at Berlin in 1987 is considered by some as one of the major incidents that eventually lead to the collapse of the Berlin Wall.
x6vQ7 TIL Snoop Dog now owns Death Row Records, in a deal signed just before his Super Bowl LVI half time show in 2022. It was a sensational 90s hip hop label that released iconic albums by Dr Dre, Snoop Dog and 2Pac - and went through multiple owners like Hasbro and the Blackstone Group.
NQlJ TIL that unlike most sharks, the great white shark is warm-blooded.
VMepZ TIL about the great California flood of 1861/62 when it rained continuously for 43 days, which was caused due to a phenomenon called Atmospheric rivers, creating a 300 mile long temporary sea. Sacramento was covered in 10 feet of debris filled water, and even telegraph poles were under water.
KbW6 TIL Colin McGregor, the brother of ‘Star Wars’ actor Ewan McGregor, is a pilot in the Royal Air Force. His aviator nickname is Obi-Two.