U.S. sanctions cloud provider 'Funnull' as top source of 'pig butchering' scams (krebsonsecurity.com)

I don't have enough time to read the paper in full right now. But I'm curious if using this they could possibly find the solution to the 3 sided coin problem. I haven't heard anything about it since I watched the matt parker video about it.

https://youtu.be/-qqPKKOU-yY

Or I guess if anyone else knows the answer, that would also satisfy my curiosity.

Scaevolus · 9h ago

They should be able to simulate it! Here's another answer: https://news.ycombinator.com/item?id=33776796

hnuser123456 · 7h ago

Looks like that post author forgot to loop back to the original question once they found a model that fit their own simulations.

Just visually going off the chart, the answer is a "coin" has a 1/3 chance of landing on its edge when its height is 1.7x its radius, or 0.85x its diameter. (the blog author used half-height and the paper he found uses full height)

90s_dev · 11h ago

Does this mean 2d physics simulators are about to get N times faster? Because that'd be cool if N is big enough.

almostgotcaught · 10h ago

> our key observation is that we can identify dynamically stable configurations of a rigid body, and calculate their associated probabilities

> this model is purely geometric, and does not directly account for momentum

answer: no

iwontberude · 11h ago

I don’t think it gets much better than this. How exceedingly clever.

spencerflem · 12h ago

I love this !!

Only kinda related but I love having the opportunity to share this website, cataloging every possible fair die: http://www.aleakybos.ch/Shapes.htm

(ie: not the sort of die in the post, they must have identical faces. this thread gave me a new appreciation for the non equal faced dice tho)

pvg · 13h ago

Paper https://hbaktash.github.io/files/rolling_dragons_paper.pdf and more related stuff on the page of one of the authors https://hbaktash.github.io/

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Putting Rigid Bodies to Rest

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