Through one hole or two?

A topological magic trick

Category:

Education

Tags:

• topology
• double
• torus
• magic
• trick
• mathematics
• claymation

[Sonny0612]

i gonna try that on my girlfriend

[AudioJustG]

"Through one hole or two?"

Thats what she said...

[5up3rp3rs0n]

A ghost moving the clay! aaaaaaaaaaaaaaaaaaa

[musicmuscle123]

...a torus and which is the remaining "handle", allows the intersecting bar to be viewed as intersecting different or both holes at any time. This double-holed torus never really needed to be transformed for the holes to be intersected differently, but transformations can exemplify one reference, even though all are valid at the same time.

[musicmuscle123]

HOWEVER, the main problem here is that everybody is looking at the double-holed torus as one object, when really, it is just 2 objects (tori) intersecting each other. however, spaces can't be jointly occupied so an observer has to select which torus gets to be whole and which is sheared to look like a C.This allows the C to openly slide along the main torus, exposing that it creates truly 3 holes (since a torus can be "split" its almost like have 3 C's). Switching references of which C's make..

[musicmuscle123]

I don't get the fuss. There is no strange topological property here. You just have to remember, that math, and geometry in particular, tell us that objects can self-intersect without creating singularities. With this in mind, it already tells us some weird things can happen.

[the3Dandres]

stop motion ;p

[BigWeebz]

this is fucking stupid. of course you can do that with a figure 8 made of CLAY that you CLEARLY MOLDED AROUND THE POLE hahahaha

[MyOverflow]

@jrhinson If you understood the topology behind it, it's actually fascinating.

[jrhinson]

I don't understand what is supposed to be so fascinating about this. The clay was just molded around the bar, was it not? Pretty sorry for a "magic trick".

[MarshalltheArtist]

@AudioJustG Your mother didn't give me that limitation last night!

[planetmeagher]

@rroms i get it