Tag: topology

Drawing The Wild Hot Links

Croc crock.

Dealing with ghosts.

How to draw a hole.

How to draw a ladder.

Card magic with cheese.

Cows herd car thief to police (infrared video).

Cambodian DIY snake trap (NSFK). Those boys caught a big one.

TRUE. A dentist travelling to the Arab Emirate of Dubai from London was sent to prison (along with her young daughter) because she admitted to having a single glass of wine on the plane en-route. After international outrage, they’ve since been released. The UAE are supposedly our allies…

Sharia Law in Dubai. Not sure how accurate this is. The laws seem to change per offense (kinda like the vague and indecipherable  Twittter and FaceBook Terms Of Service rules).

No pop stars, no vocal show offs, no overpaid social justice warriors “taking a knee.”

[Top .gif: A sphere has a constant diameter, and so does a Meißner Tetrahedron, discovered in 1911. Here’s the book used in the graphic example above.]

Three Nested Klein Bottles

Nested Klein Bottles_Science Museum

This is one of a series of glass Klein bottles made by Alan Bennett in Bedford, United Kingdom for the Science Museum, London. It consists of three Klein bottles, one inside another. A Klein bottle is a surface which has no edges, no outside or inside and cannot properly be constructed in three dimensions. In the series Alan Bennett made Klein bottles analogous to Mobius strips with odd numbers of twists greater than one.

I disagree that it “cannot properly be constructed in three dimensions” as it obviously has been.  Perhaps they meant defined…

[Image and description from here, via somewhere else.]

[UPDATE: Here’s a visual summary of a single Klein Bottle, showing its relationship with a Mobius Strip (thanks to Strider).]