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

Be careful

[(Anonymous)]

Fourth-dimensional accidents can be tragic.

A mathematician confided
That a Mobius band is one-sided.
He said "You'll get quite a laugh
If you cut one in half
For it stays in one piece when divided!"

A mathematician named Klein
Thought the Mobius band was divine.
He said "If you glue
The edges of two
You'll get a weird bottle like mine!"

Re: Be careful

[cellio]

Fourth-dimensional accidents can be tragic.

They sure can. That's probably why the order form asked me to specify the number of dimensions in my universe (really!), and why it came with certain disclaimers.