Algodoo

Nice presentation and code.

“Sound waves? Delightful things—much slower than the ones I’m famous for, but at least they don’t require a spark gap to enjoy a good opera.”

You could also use a piston pump as a power source and a check valve as the rectifier.

NIce.

Q: Who are some of those guys?
A: surfingscientist

This image features popular YouTubers (from left to right) Marcus Butler, Joe Sugg, Zoe Sugg (Zoella), and Alfie Deyes. This specific photo was taken during a collaboration or social gathering in the mid-2010s, a time when these creators were at the peak of their YouTube fame.

I assume the others are more readily recognizable.

I figured as much, but inquiring minds want to know.
Besides those people went thru plastic surgery just for your Algodoo scene. The least you could do is mention their names.

Thanks.