8 ms·
Very cool. Now what I want is something that will scan a pile of rocks and tell me how to put them together to build a wall with minimal space between them. h
by robbrown451 4y ago
Very cool.
Now what I want is something that will scan a pile of rocks and tell me how to put them together to build a wall with minimal space between them.
https://media.istockphoto.com/photos/stone-wall-texture-picture-id154416206?k=20&m=154416206&s=170667a&w=0&h=Cg1QjtTxKhJXhamTsNrugwzj396lJRHm8v7WwTvqanc= https://media.istockphoto.com/photos/stone-wall-texture-pict...
Or better yet, tell my robot how to do it.
- ezconnect 4y agoThere's lots of papers about that algorithm used on warehouse box stocking.
- vidarh 4y agoMore generalised, the act of putting them together is a subset of bin packing, which is certainly one of the more studied problems of computer science, though NP-hard, and having a pile of rocks of different size complicates things substantially. Getting a decent approximation once you know the dimensions of the rocks is probably doable, but minimising the labour necessary to get the scans you need of each rock is also a huge challenge.
- weinzierl 4y agoVery cool idea, but what I'd need way more often: Now what I want is something that will scan a pile of socks and tell me how to put them together to have a perfect match. https://media.istockphoto.com/photos/socks-pile-texture-picture-picture-id1069111848?k=20&m=154416206&s=170667a https://media.istockphoto.com/photos/socks-pile-texture-pict... Or better yet, tell my robot how to do it.
- baxtr 4y agoSock matching is not really difficult is it? The act of putting them together is the cumbersome part!
- weinzierl 4y agoDepends on the person. Some are naturally good at playing Candy Crush and might even enjoy it. I'm terrible at it and for me it's borderline torture. Same with sorting socks.
- gog 4y agoThis is an easy problem to solve, find the socks you like and then buy 20 pairs of the same socks and get rid of the old ones.
- vidarh 4y agoThis works remarkably well in that you might think you'd end up throwing away a lot of good socks, but in my experience socks are surprisingly prone to either design flaws that sees many socks from the same batches wear out in the same way around the same time and/or similar wear from your footwear etc., so when they start going odds are you'll see a series of rapid failures, and you're not losing much by replacing them all when you're left with few enough.
- jiggywiggy 4y agoNot so fast. Sock magic: I've only bought black socks over the last 5 year, and still I can't seem to find ones anymore that exactly match in both fitting and color (they all seem to have degraded in different color tones)
- smilespray 4y agoMaybe your left foot produces slightly more agressive sweat than the right one.
- davidjfelix 4y agoThis only really tracks if they intentionally wear socks on specific feet. While some socks have L/R indicators, most don't.
- taneq 4y agoAh, the trick here is to buy all your socks at the same time, and open all the packs at once. Don't just open a pack every now and then, or they'll age differently and you get the variation in wear and tear. Then once you're down to a few days' worth of raggedy socks, throw them all out at once and open the next batch. (Source: Am a fellow black-sock-only person who made the above mistake last time around.)
- pacifika 4y agoTurns out you already have a pair of any combination of socks.
- xaduha 4y agoVery cool idea, but what I'd need way more often: Now what I want is something that will scan a pile of stocks and tell me how to put them together to have a perfect portfolio. https://www.tradingview.com/heatmap/stock/ https://www.tradingview.com/heatmap/stock/ Or better yet, tell my robot how to do it.
- phkahler 4y agoVery cool idea, but what I'd need way more often: Now what I want is something that will scan dating sites for my perfect mate. Or better yet, tell my robot how to do her.
- reubenmorais 4y agoIf your robot is doing her robot, you can let the algorithms do the perfect mate matching, and then just grab a relaxed coffee with her, no sexual pressure anymore. What Žižek would call a great date: https://www.youtube.com/watch?v=7xYO-VMZUGo https://www.youtube.com/watch?v=7xYO-VMZUGo
- geoduck14 4y agoWhat meme is this from?
- solardev 4y agoVery cool idea, but what I'd need more often is something that will take a pile of memes and put them together into a perfect post.
- imdsm 4y agoVery cool idea, but what I'd need way more often: Now what I want is something that will scan my life and tell me how to put it back together properly. Or better yet, provide a robot to do it for me.
- chrischen 4y agoMaybe take a normal rock wall and break it into tiny pieces, then reassemble.
- actionfromafar 4y agoThis could actually be stronger than a wall built from rectangular pieces.
- Teever 4y agoI've been curious to see what a stable diffusion type thing trained on blueprints and schematics could produce. The magnum opus of such a project would be something that could produce the circuit from the text "a guitar pedal that makes a guitar sound like wet blankets and dry pickles in the washing machine." The extension of your idea would be a piece of software that could generate the BoM and gcode to assemble the circuit, or in your instance the bricks. The meta of that would be the circuit that could build circuits that build circuits.
- totetsu 4y agoThat is a problem in three dimensions, a Photo wont tell you the 3d shape of each rock.
- robbrown451 4y agoOf course. But I didn't say a photo. (it could be video, it could be lidar, etc) And yeah maybe you need the robot to pick up each rock and look at it from different angles.
- totetsu 4y agoMy source is that I once leafed through a Japanese in a book store book for rural diy homesteader types that had detailed instructions on how to make a retaining wall for terraced rice fields not dissimilar to the one you pictured, and my impression is that there is a lot of engineering behind the surface, and also the arrangement of the sizes of the stones to make it stable and movement resistant (like to settle back into place after a quake), that make this more than just fitting the shapes together like a jigsaw.. I wish i had actually bought that book now.
- robbrown451 4y agoYes it is a challenging problem to do it well. But cool to think about!
- VoodooJuJu 4y agoA peasant will do that wall better, and (more importantly) for cheaper. I know because I'm a peasant.
- mfashby 4y agoDry-stone walling is a skill!
- Tyr42 4y agoThere's one for bananas on bread. https://www.ethanrosenthal.com/2020/08/25/optimal-peanut-butter-and-banana-sandwiches/ https://www.ethanrosenthal.com/2020/08/25/optimal-peanut-but...
- soco 4y agoBuild bridges, not walls
- kQq9oHeAz6wLLS 4y agoGood fences make good neighbors.