› added 2 years ago

119

TIL that air sirens are not just really loud speakers but spinning wheels that create pressure waves

Read more beatlyzer.com

via beatlyzer.com

pb04 TIL Physicists like using 2000 year old ancient Roman lead in their experiments and this is pissing off archaeologists
rRYYo TIL Countdown, the iconic UK gameshow which has run for 35 years to date, went no further than a pilot in the US, apparently because producers thought its premise was too "brainy" to appeal to the general American public.
woKR6 TIL Alex Winter and Keanu Reeves, despite playing Bill and Ted who play guitar in the movies, aren't actually guitar players, but in fact, both play bass guitar.
KOvbR Today I learned there is 8D music, that makes you think you're at a live concert when you listen to it with any headphones. Here's an epic example from the legend Hans Zimmer.
l7Rw1 TIL that there are more than 110 armed conflicts today.