Oh that’s great! There are many pictures of this type of lock around, but when it comes to locks, you need a video/gif to illustrate how it works, right?
This is ye olde pin tumbler lock, an
Egyptian (c.2000 BCE)
improvement of an older Assyrian (c.4000 BCE) design:
It spread out from Egypt and it was used for thousands of years. The modern ubiquitous Yale lock is also called a pin tumbler, since it’s an elaborate (and tubular) version of the same basic concept.
I’d seen the last gif, but I get it so much better after seeing the simpler larger and older version first.
Locks really are the biggest case of “if it aint broke, don’t fix it” like we invented a lock design thousands of years ago like “put little sticks inside the big sticks. Huzzah” and changed like nothing other than the number and material kf the sticks.
Exercises for all the homies who want to have a long career drawing.
The true problem with being an artist and drawing all day (as I wanted my whole life) is that human backs are not designed to hold that position, so it is very common for artists and designers to have really stiff shoulder blades, creating a chain of muscle strain towards the arm AND the back… and a lot of pain.
These are some physical exercises for artists and honestly anyone who works at a desk.