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Build “magic,” gravity-defying structures–with Legos, kite string, and physics

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Re: Build “magic,” gravity-defying structures–with Legos, kite string, and physics

#2
https://en.wikipedia.org/wiki/Tensegrity

This has been a "thing" on reddit for a couple of weeks now and with lots of people being bored right now the results were quite diverse and interesting:

https://www.reddit.com/r/lego/comments/g2230l/lego_tensegrit...

https://www.reddit.com/r/EngineeringPorn/comments/g05lld/i_b...

https://www.reddit.com/r/pics/comments/g44sz8/my_first_attem...

https://www.reddit.com/r/3Dprinting/comments/fcnum5/finally_...

https://www.reddit.com/r/3Dprinting/comments/fh5cvo/thought_...

etc.

Re: Build “magic,” gravity-defying structures–with Legos, kite string, and physics

#5
There’s a great book I can’t recall the name of that puts forth the notion that we commonly make the mistake of modeling the human body as a compressive structure, when it is just as much or more a tensegretic structure.

We aren’t piled bone on bone like a concrete block house.

Fascinating idea.

Re: Build “magic,” gravity-defying structures–with Legos, kite string, and physics

#6

https://en.wikipedia.org/wiki/Tensegrity This has been a "thing" on reddit for a couple of weeks now and with lots of people being bored right now the results were quite diverse and interesting: https://www.reddit.com/r/lego/comments/g2230l/lego_tensegrit... https://www.reddit.com/r/EngineeringPorn/comments/g05lld/i_b... https://www.reddit.com/r/pics/comments/g44sz8/my_first_attem... https://www.reddit.com/r/3Dprinti…

I have also seen a tensegrity flareup on Twitter. I'd love to know how this got started.

Re: Build “magic,” gravity-defying structures–with Legos, kite string, and physics

#7

There’s a great book I can’t recall the name of that puts forth the notion that we commonly make the mistake of modeling the human body as a compressive structure, when it is just as much or more a tensegretic structure. We aren’t piled bone on bone like a concrete block house. Fascinating idea.

I hadn't heard that applied at the level of the body, that's interesting!

Back when i was a cell biologist, i was very excited to read an argument that cells had tensegral structure:

https://jcs.biologists.org/content/116/7/1157

Re: Build “magic,” gravity-defying structures–with Legos, kite string, and physics

#8
Here's a (work-in-progress?) monograph about the mathematics of tensegrities! Neat application of representation theory outside the standard examples from chemistry!

Connelly & Guest 2015, "Frameworks, Tensegrities, and Symmetry: Understanding Stable Structures"

http://pi.math.cornell.edu/~web7510/framework.pdf

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