TIL there is the machine which consists of twelve pairs of worms and gears. The input gear makes 4 revolutions in a minute and the output gear thus makes 1 revolution in 2.3 trillion years and is embedded in a block of solid concrete. This machine represents time frames astrophysicist deal with.

http://makezine.com/2012/04/25/arthur-gansons-machine-with-concrete/



Submitted February 06, 2015 at 01:27AM by Atarity http://www.reddit.com/r/todayilearned/comments/2uwl8f/til_there_is_the_machine_which_consists_of_twelve/