Torsion bars

Yes. Door Slammers was our textbook for that class


My bad. I'm using stored energy when I should have said POTENTIAL energy.

That was a cursory view of that chapter.

Do you still have the book? If so, are you able to copy that chapter and post in in this thread? In an hour or so I'm going to read the entire chapter again.

It would be nice if you could post it.