Gerard Westendorp

[Gerard Westendorp @GerardWesty31]

Nice speech:

https://t.co/O9dnxwKb7B

[Gerard Westendorp @GerardWesty31]

In case you are wondering why I am a bit quite the last year or so, I am mostly on Mastodon these days:
https://t.co/0AvtBjYNXU
Mastodon used to be a bit quite, but it is getting much better.

I don't feel at home anymore with Twitter slash X. Too "political".

[Gerard Westendorp @GerardWesty31]

@RodBogart Ah, I get it. Managed to solve it, it was quite difficult.

[Gerard Westendorp @GerardWesty31]

Electric circuits with no source but with positive and negative resistors can have non-zero solutions, like the one shown in the picture.
V = cos(2*pi*i/30), where *i* is the index along the edge of the Mobius strip.
More on this here: https://t.co/V7vq1ZC3iG

[Gerard Westendorp @GerardWesty31]

@PhysInHistory Galileo said: 100 mules are not faster than one race horse.

[Gerard Westendorp @GerardWesty31]

@MagicPi2 I made a wooden puzzle out of that dissection:

https://t.co/EQidZD2Bvs

[Gerard Westendorp @GerardWesty31]

@GWelfer I thought humans invented the wheel!

[Gerard Westendorp @GerardWesty31]

I made a hinge construction based on an idea by Ron Resch back in the sixties. https://t.co/lAUy08gNVo
As the cubes move, the cubes in yellow set and grey set remain in the same orientation.
It should be possible to improve the point hinges, so that the device moves better.

[Gerard Westendorp @GerardWesty31]

@PhysInHistory The parents of the Monty Python cast. Only one mother turned up.

[Gerard Westendorp @GerardWesty31]

@Art0fThinking I Dutch it is "kapje".

But I guess the Flemish "kontje" is cooler.

[Gerard Westendorp @GerardWesty31]

I am moving my website.
I hope to be adding interesting content soon!
If you have links that you want to keep up to date, just replace
https://t.co/B0jcIYie9R
with
https://t.co/CukJkyM0Uk

[Gerard Westendorp @GerardWesty31]

@Rainmaker1973 There is a company that uses a related process to "bake" wood:
https://t.co/5KbNS1DlHg

[Gerard Westendorp @GerardWesty31]

I put some hinged tiles together in a tiling.

[Gerard Westendorp @GerardWesty31]

@akivaw @AndrewR88968514 I modified the hinged Einstein tile, so that it remains tile-able I was surprised to find that my modifications led to a tile that remains invariant in shape, but not in size!

[Gerard Westendorp @GerardWesty31]

I made a hinged version of the Spectre Einstein tile.
Based on a subdivision by Andrew Russell (@AndrewR88968514).

[Gerard Westendorp @GerardWesty31]

@mananself Sorry, I meant its opposite *octagonal* end.

[Gerard Westendorp @GerardWesty31]

I 3D printed a kind of Knex to make a "not yet experimentally discovered carbon allotrope", with a 24 heptagon unit cell of a 3D lattice.

[Gerard Westendorp @GerardWesty31]

@mananself Right! Instead of connecting the 6 octagonal ends to a 3D neighbors, you could connect them to its opposite orthogonal end. That gives the Klein quartic topologically, but the heptagons get hopelessly deformed. I made many prototypes of that...

[Gerard Westendorp @GerardWesty31]

@akivaw No, I tried looking at it. I don't understand how the system works yet, but I am working on it...

[Gerard Westendorp @GerardWesty31]

@KeishiroUeki @Cults3D Interesting how you 3D printed the hinges!