Some fine videos

[nancylebov]

Toroidal vortices, abstract and real-- I hadn't thought about generalizing smoke rings.

World's largest rope swing: physical exuberance for adults

Suppose you had two giant animatronic cranes with great big video screens on their bellies....

Links from elenbarathi here, plus a few more videos.

Comments

[sodyera.livejournal.com]

The toroidal dance reminded me of the userpic I just added.

[siliconshaman.livejournal.com]

Just a mention, apparently the re-jigged theoretical configuration for a working warp-drive is a double toroid like that...