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Paul Bone
@Paul_Bone
I saw this and figured it out right away, but I was this this many years old when I finally understood how a sewing machine works. Brains huh?
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Simon Pampena
@mathemaniac
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🤯 Topological Logic - a rod through one hole of a double torus can pass through both with some careful stretching of the surface. No tearing or pinching required. A fantastic video made by math professor Dave Richeson @divbyzero
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Paul Bone
@Paul_Bone
I just realised I may have misunderstood. I just realised you may have been mesmerised for 5 minutes, not trying to figure it out. Sorry.
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Paul Bone
@Paul_Bone
Replying to
@brendanzab
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@MichelePlayfair
Heh. I'm not sure I'm ready to explain swing machines, topology is easier! Sewing machines use two threads, as the thread on the needle moves in and out a second thread below threads through the first thread. I can almost see in my mind how it works but not quite.
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