Engineering

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A place to geek out about engineering, fabrication, and design. All disciplines are welcome. Ask questions, share knowledge, show off projects you're proud of, and share interesting things you find.

Rules:

  1. Be kind.
  2. Generally stay on topic.
  3. No homework questions.
  4. No asking for advice on potentially dangerous jobs. Hire a professional. We don't want to be responsible when your deck collapses.

The community icon is ISO 7000-1641.

The current community banner image is from Lee Attwood on Unsplash.

founded 2 years ago
MODERATORS
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this is not for cosplay or comidy. im looking to make a device that can cast spells. lazy answers and sarcasm please leave. for the first device im looking for 3 spells. this project is ment to open minds to new possabilities and get peaple used to looking at wonders and asking how do i do that. origal idea came from how do dragons work? please if you up for dialog. feel free to comment.

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👋 Hey engineers!

I’ve just started a dedicated community for process and chemical engineering:

👉 !ChemicalEngineering@lemmy.world

If you're into industrial chemistry, process design, thermodynamics, safety engineering, separation technologies, energy systems or plant optimization –> this is the place to be.

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cross-posted from: https://lemmy.sdf.org/post/40687817

Mark Rober is the Glitter Bomb guy. This has potential.

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So I'm hoping this is the right place for this, but I think i have a problem that y'all can help with. I have a 3.5-4ft ball python (Oli Syyyykes) in a 40 gal wide glass tank. Ik its too small, but im actively looking for a bettet enclosure for her. So. My question is can I take 2 40gal wide tanks and use aquarium silicone to somehow connect the 2 and make a massive space for her? I know that I would need to make a custom lid and it would probably need a support bar across the top. What do y'all think? Is this a ridiculous stoner idea? TIA

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This design is incredibly clever. I assume Boeing and other companies use similar masks? Maybe someone here knows more about commercial aviation than I do and can chime in.

Apparently Collins Aerospace makes them, or at least a version of them:
https://www.collinsaerospace.com/what-we-do/industries/military-and-defense/oxygen-and-psu-systems/crew-oxygen-systems/crew-masks/sweep-on-fullface-oxygen-mask

Video source: https://youtu.be/mgLSTimJ868

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So clean. So orderly. This is pure satisfaction.

The photo is from the Hanford B Reactor in Washington state, USA.

Source: https://www.spokesman.com/picture-stories/2014/aug/10/hanford-tour/

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Watching heavy machinery never gets old.

Source: https://imgur.com/gallery/oil-quenching-y3oiCKG#/t/toolgifs

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I have an elderly dog with a broken leg. Back in late 2019 I started hiking down by the river with the dog and have continued to this day. However she broke her leg, and then had to have surgery to add a plate, she is still unable to walk much during the healing. So I purchased a garden cart to tote her with us (my wife and my dog), but the extra weight and the quick harness I made are starting to make it too difficult.

Currently I have two equal length leashes attached to a clip on the handle.

The leashes crisscross my chest like Sean Connery’s bandoliers.

I have been thinking about maybe some replacement backpack straps, but I am unsure what to do with them on the back. Maybe a rope web of some sort, that attaches to the cart handle?

If anyone has any ideas, I would love to hear them, because I have a feeling even after her leg is healed I will still be carting her around for at least some of the hike.

Edit to add a picture of said dog, Mocha, this morning.

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I'm fascinated by the youtube videos of "the spike" where circular waves can be used to create a pressure spike that asymptotes at the center, example: https://www.youtube.com/watch?v=iWKFPTgkpXo

In my mind, this makes sense for an essentially 2d scenario...but why can't it be expanded to 3d? Could you do this with gasses? Could you make some theoretical spherical chamber with, as an over-simplification, soccer-ball shaped pistons to create some asymptotically high pressure spike at the center? Could you modify parameters like piston extension distance, chamber radius, and temperature to create conditions to generate things like crystals found in the earth, like those industrial diamond making machines? Does creating asymptotically high pressures momentarily reduce the complexity of chambers needed to withstand those pressures, as the pressures near the outside would be much lower? Heck, could you create conditions wild enough at the center to bring things like fusion into range of ignition with supplemental lasers or something?

I want to play with this idea by throwing some numbers around and simulating, but this kind of thing is totally new to me and I wouldn't know where to start to explore this curiosity. Is there any place for someone to do some beginner physics simulating?

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Can someone help my man out?

cross-posted from: https://lemm.ee/post/47902662

First, I have no idea what some of these things are called or I think I know but I'm also second guessing myself the whole time. Also, I've never bought glass from anywhere but a local head-shop. For instance, this bong is almost 20yo. Please forgive me, if I apply incorrect nomenclature to any of the parts.

My bong's inner pipe, I think it's called a joint, broke several months back. I searched online shortly after but there were so many variables to consider that it kind of seemed overwhelming. I'm hoping there's someone within this community who has experience replacing a bongs' hardware. I have some measurements and images with the measurements included if anyone needs to see them. All of the measurements below are approximate mm -> inch conversions.

  • Depth from rubber grommet to lowest part of chamber: 115 mm, 4.5 in

  • Inner glass diameter (joint?): 14 mm, 0.5 in

  • Inner glass diameter (bowl?): 8 mm, 0.3 in

  • Diameter of lowest chamber (don't know if this is needed): 107 mm, 4.25 in

  • Diameter of bowl chamber (don't think this matters): 30 mm, 1.25 in

I would appreciate recommendations you all have for reputable glassware replacement sellers (from first-hand experience, preferably). In addition, I don't think the depth of the join needs to be that long, that's just the max depth. Thank you in advance for any suggestions, recommendations, or numbers to filter for when finding a replacement!

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In air. This seems like it should be incredibly basic information but I can't find it anywhere.

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