In the land of "mod 60" (which works like minutes on a clock) "1 divided by 7" is 43, while "1 divided by 6" is impossible! Let me show you the strange patterns of "modular division", a deep mathematical concept which we can visualize through clocks and calendars....

I had hoped to have this episode out a couple days ago, but my computer broke over the weekend. I got a new one, but had to re-edit this episode. Now things should be back on track with another new episode this weekend. And make sure you're also subscribed to my @Domotro channel which has lots of shorts, livestreams, and bonus videos in between the main episodes here.

Special thanks to Evan Clark and to all of my Patreon supporters:
Max, George Carozzi, Peter Offut, Tybie Fitzhugh, Henry Spencer, Mitch Harding, YbabFlow, Joseph Rissler, Plenty W, Quinn Moyer, Julius 420, Philip Rogers, Ilmori Fajt, Brandon, August Taub, Ira Sanborn, Matthew Chudleigh, Cornelis Van Der Bent, Craig Butz, Mark S, Thorbjorn M H, Mathias Ermatinger, Edward Clarke, and Christopher Masto, Joshua S, Joost Doesberg, Adam, Chris Reisenbichler, Stan Seibert, Izeck, Beugul, OmegaRogue, Florian, William Hawkes, and Michael Friemann.
(To join that list of people supporting this channel, and get cool bonus content, check out the Combo Class Patreon at   / comboclass  )

Come chat with other combo lords on the Discord server here:   / discord  
and there is a subreddit here:   / comboclass  

If you have any extra clocks/dice/etc. that you'd like to see in the background of Grade -2, here's my private mailbox address (not my home address). If you're going to send anything, please watch this short video first:    • You Can Now Mail Me Things to Put in ...  
Domotro
1442 A Walnut Street, Box # 401
Berkeley, CA 94709

If you want to try to help with Combo Class in some way, or collaborate in some form, reach out at combouniversity(at)gmail(dot)com

In case people search any of these words, some topics mentioned in this video are: clock math, modular arithmetic (particularly mod 60 and mod 7), modular addition, modular subtraction, modular multiplication, modular division, coprime (also known as relatively prime) numbers, which operations have the property of being "closed" in which realms of numbers, and more!

If you're reading this, you must be interested in Combo Class. Make sure to leave a comment on this video so the algorithm shows it to more people :)

DISCLAIMER: Do not copy any uses of fire, sharp items, or other dangerous tools or activities you may see in this series. These videos are for educational (and entertainment) purposes.