klein bottle

[cellio]

For his birthday I bought Dani a klein bottle. It was a definite hit. :-) The documentation it came with was well-done, too -- definitely as entertaining as the bottle itself. (Why yes, of course I read the paperwork and carefully inspected the bottle before wrapping it up for him. :-) )

The web site is lots of fun too. Be sure to check out the spin-off products, like the "cutting edge jigsaw puzzles".

Dani hasn't said yet whether he's going to apply the calibration decal it came with. You know -- 0, 0, 0, 0... :-)

(If you don't know what I'm talking about, see this explanation from their web site.)

Comments

[psu-jedi.livejournal.com]

Cary got one for his Dad for Hanukkah this past year! When he first told me about them a few years back, I had no clue what he was talking about. Then he showed me, and I found them very cool indeed!