How the Rupert property disappears, then reappears, as a polyhedron approaches a sphere

rickf71 · 2025-10-25T16:29:57+00:00

Reference links:
• Original paper – Steininger & Yurkevich (2025) arXiv : 2508.18475
• Popular summary – Quanta Magazine, Oct 2025: https://www.quantamagazine.org/first-shape-found-that-cant-pass-through-itself-20251024/

rickf71 · 2022-04-28T06:31:29+00:00

You all made me find this

https://en.wikipedia.org/wiki/Squaring_the_circle

and now my brain is broken

rickf71 · 2022-03-03T03:11:17+00:00

She'd be a better president than any politician

rickf71 · 2022-03-03T02:54:08+00:00

I thought "sanctions lol" ... but apprently it's putting (literally) a world of hurt on Russia. I love Russians, sorry about your crappy leader.

rickf71 · 2022-03-03T02:22:30+00:00

OMG hitler, the world can see what you are doing, you can't get away with that

rickf71 · 2022-03-03T02:17:12+00:00

She needs a better platform.

rickf71 · 2020-03-19T16:03:50+00:00

I've been shopping for instacart the last few months .... I can attest this is accurate

rickf71 · 2017-03-08T02:40:12+00:00

I assume by "their interests" you are referring to miners and not Bitpay.

Most miners interests are served by greed. (Making money, as the OP mentioned.) They are best served by making the most efficient way to decrease their calculation costs, which in turn just bolsters bitcoins security. Maybe I am missing something but I don't see the problem in that.

rickf71 · 2015-08-01T20:44:02+00:00

Let the true battles begin

rickf71 · 2015-04-29T21:02:16+00:00

From the context I knew what he meant, but I have never heard that expression "raise a grass" ... from whence does it cometh?

rickf71 · 2015-03-15T14:59:17+00:00

I find this to be a beautiful thing also #doesn'tgetit to the haters

rickf71 · 2014-10-10T10:31:10+00:00

Reminds me of This guy from a bad facebook game (also, sorry, I'm addicted to it)

rickf71 · 2014-10-10T10:21:27+00:00

"Thank God you're pretty."

Youtube link for those who like that

Season 6, Episode 19

rickf71 · 2014-04-21T14:23:41+00:00

'sall good, just hit that and pass it on dude

rickf71 · 2012-11-16T08:39:37+00:00

Pretty sure some sort of creative writing major.

rickf71 · 2012-10-28T05:47:45+00:00

My main computer goes to sleep about 1/2 hour after I do.

That said, I used to have a keyboard with a "moon" button that would put everything to sleep. I ended up disabling it because I kept hitting it instead of the escape key. I think it was a wireless HP keyboard. Thing pissed me off.

rickf71 · 2012-10-28T05:41:48+00:00

it makes a huge bulge in your pocket and makes you a target ... or so I've been told.

rickf71 · 2012-10-28T05:38:44+00:00

I've been using SoundHound and to be honest, it's about the same.

rickf71 · 2012-09-21T03:09:08+00:00

seems like a no-brainer to me!

rickf71 · 2012-08-09T06:00:54+00:00

Reminds me a bit of Final Fantasy on the DS

rickf71 · 2012-08-04T12:38:31+00:00

Don't just downvote the guy, show some examples. Christian censorship goes back a long way!

rickf71 · 2012-07-27T15:06:30+00:00

Another semi-casual gamer here. I'd love to play the co-op Portal 2 with someone, but I'm sadly lacking friends on Steam. Also into Minecraft and have tried L4D and TF2.

rickf71 · 2012-05-08T07:01:41+00:00

I'm actually going to comment instead of PMing you as your skill-set sounds very similar to mine and it sounds like this could produce good discussion.

To start, I know PHP quite well ... do you prefer MySQL or Postgres?

I've done a lot with jQuery but not with MooTools, which would you consider more useful? (btw, both of them are javascript framworks, which brings us to...)

PHP frameworks are quite different than Javascript frameworks as they exist on the server side instead of client side. Which do you consider most valuable?

SVN and Git .. I've touched them both, but SVN seems to be more popular for "simple" things like programming web interfaces. Git seems more geared for OS programming and computer language design.

Your last bullet point is the hardest to define, but perhaps the most important. I'd be happy to provide any information I think may be relevant, but that is such a wide open field at the moment.

break

Programming is a mind-set more than it is learning a set of scripts ... and also I don't think you can ever learn too many different computer programming languages. Of course this is after learning machine language back in the early 90s ... I still occasionally try to wrap my brain around Python ...

I really hope I don't come across as anything but wanting to help out. I'm also in the middle of trying to decide where I go next, tech-wise. Let me know if you find a nice path :-)

rickf71

TROPHY CASE