Building a monostable tetrahedron · HackerPapers discussions

Building a monostable tetrahedron — HN submission

Tue, 08 Jul 2025 19:46:42 GMT

Monostable Tetrahedron

https://arxiv.org/abs/2506.19244

1 point; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.

Building a monostable tetrahedron — mentioned by wglb

Fri, 04 Jul 2025 04:14:34 GMT

Arxiv article: https://arxiv.org/abs/2506.19244

Paper and discussion history. A mention is not an endorsement.

Building a monostable tetrahedron — mentioned by joshAg

Thu, 26 Jun 2025 21:18:42 GMT

so just to confirm, this HN submission [ 1] should have linked to this pdf of the paper [2] and put the article [3] that is the current link for the post as a comment? [1]: https://news.ycombinator.com/item?id=44381297 [2]: https://arxiv.org/pdf/2506.19244 [3]: https://www.quantamagazine.org/a-new-pyramid-like-shape-always-lands-the-same-side-up-20250625/

Paper and discussion history. A mention is not an endorsement.

Building a monostable tetrahedron — mentioned by ColinWright

Thu, 26 Jun 2025 09:23:50 GMT

The paper says: "What did appear as a challenge, though, was a physical realization of such an object. The second author built a model (now lost) from lead foil and finely-split bamboo, which appeared to tumble sequentially from one face, through two others, to its final resting position." I have that model ... Bob Dawson and I built it together while we were at Cambridge. Probably I should contact him. The paper is here: https://arxiv.org/abs/2506.19244 The content in HTML is here: https://arxiv.org/html/2506.19244v1

Paper and discussion history. A mention is not an endorsement.

Building a monostable tetrahedron — mentioned by tgbugs

Wed, 25 Jun 2025 20:52:06 GMT

That is indeed the example they mention in the paper https://arxiv.org/abs/2506.19244.

Paper and discussion history. A mention is not an endorsement.

Building a monostable tetrahedron — HN submission

Wed, 25 Jun 2025 20:00:38 GMT

Building a Monostable Tetrahedron

41 points; 3 discussion replies on HN. Paper and source history. A submission is not an endorsement.