It's great to see fun and stimulating examples that you (might) be able to reproduce yourself. Also, his Analog Computing Bookshelf photo is very cool.[2]
Anybody else on HN have experience / pointers on where to find more stuff like this w.r.t. analog computing?
[1] http://www.glensstuff.com/ballimkasten/ballimkasten.htm
[2] http://www.glensstuff.com/analogbookshelf/analogbookshelf.ht...