FYI, learning basic self-defence is absolutely worth it.
I would say, it's up there with understanding Spongebob memes.
Reminder to update https://howlongistheline.org/ if you're in line for groceries!
Why does the inner diameter increase?
Well, a circular expansion is exponential.
Due to this, the metal in the inner circle, pushes harder to grow, than the outer diameter (and the metal in between).
When I first learned this, I was flabbergasted, but, if you think about it, it makes sense.
The answer is B, the inner diameter will increase.
Are you using a Linux OS that uses the ibus interface for keyboard input?
And having trouble with macrons?
Depression, Anxiety, Autism, Security.
Killing demons for a living.
Maintainer of https://stickertrade.me
A paid, early access, strongly moderated Mastodon instance hosted entirely in New Zealand.