I was just watching that video from Numberphile like... yesterday. Either this is a strange coincidence or someone (you?) posted it somewhere here then.
This is going to drive me nuts until I figure it out.
I was just watching that video from Numberphile like... yesterday. Either this is a strange coincidence or someone (you?) posted it somewhere here then.
This is going to drive me nuts until I figure it out.
Ahaha! Yes I posted it just recently, it was my inspiration.
Good to know that people actually watch these posts! :-)
Ahaha! Yes I posted it just recently, it was my inspiration.
Good to know that people actually watch these posts! :-)
Ah, here it is! It was a submission to /s/Videos.
Whew, I feel a ton better now. This is a recurring issue for me and a lot of times I never find out. I drive my wife crazy with it... I do it with people all the time.
Ah, [here it is!](https://phuks.co/s/Videos/4715) It was a submission to /s/Videos.
Whew, I feel a ton better now. This is a recurring issue for me and a lot of times I never find out. I drive my wife crazy with it... I do it with people all the time.
A ring (of 3 rings) I made from copper wire. It is a Borromean configuration, which means that any 2 individual links do not intersect but the 3 together are inseparable.
The first image is the (mostly) finished ring in an open state, and the second when it collapses to its ring state.
The third image shows the ring and a prior attempt with unflattened wire, which lays flat due to waviness in each ring, but cannot be turned into a ring (I think the links are too round in both senses- the wire needs to be flattened thinner and each link needs to be slightly elliptical).
With the ring in ring form, it's easier to see how the rings actually form a simple braid or plait. In fact if you braid through one iteration (so the leftmost goes to the rightmost and back) and then join the left start and end, the middle with itself, and right with right, you get borromean rings!
Sorry for the potato quality. My better quality potato cameras were sent to Phuks HQ for their server farm.
More information:
Borromean Rings on WP
Borromean rings on Numberphile, also showing a guy who made the same thing in silver, the inspiration
Vi Hart making Borromean Onion Rings