Mechanical Engineering
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The Power of Sand Batteries
YouTube Video
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Crosspost from the "Energy" Community. Seemed too good not to put here.
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Learning mechanical engineering | mechanics, study, fastest, most effective
Is there any mechanical engineers? What you would wish to know when you were starting learning? What skills and topics you consider the most useful in mechanical engineering?
What is the fastest way to learn mechanical engineering in the nowadays when 3d printers are avaliable to be able to design and make custom clocks, engines, generators?
- gothamist.com Debate heats up over how to dispose of Indian Point radioactive water
The operator of the nuclear power plant has sued, saying the state wrongly blocked its plan to discharge the water into the Hudson River.
Just build a replacement nuclear power plant and reuse the water. Right?
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3DConnexion is going to have to pry my SpaceExplorer from my cold, dead fingers.
I can't stand the SpaceMouse Pro. They ruined it! Why would they swap the nice tactile buttons for stupid gummy membrane buttons? And why coat the whole thing in nasty soft touch coating that is going to turn to goo? We peaked with the previous generation of space balls.
Since I've been working from home though, it has gotten quite annoying to unplug my SpaceExplorer and take it back and forth to the office. It would be so nice to have one of those fancy new wireless ones. But that's not happening, since they ruined it.
So, I added USB-C to mine, instead. Now, I'll just have a cable at the office, and a cable at home and just take the unit itself back and forth. I can even leave a USB-C to USB-C cord in my case, in case I need to use it with my laptop away from my docks! If anyone is interested, I can share the STL for the little breakout board mounting piece I made.
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Huge News: Safety Studies has shown that graphene can be used without adverse effects. Big for Nanotechnology, Biomedical, and Electrical Engineering
www.theengineer.co.uk New research shows graphene can be developed and used safely - The EngineerResearch has found that a specific type of graphene, which has ‘huge potential’ to tackle multiple global challenges, could be developed further without acute risk to human health.
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AI has been used for a breakthrough in batteries
www.theengineer.co.uk Liverpool team uses AI for battery breakthrough - The EngineerResearchers at the University of Liverpool have used AI tools to aid the discovery of a new solid-state material that rapidly conducts lithium ions.
- scitechdaily.com Chilling Breakthrough: The Science Behind a Real-Life “Freeze Ray” Technology for the Air Force
A University of Virginia professor believes he has discovered how to create a freeze-ray device, inspired by the Batman villain, Mr. Freeze. Rather than being a weapon, this device is intended to cool down electronics within spacecraft and high-altitude jets. Do you know that freeze-ray gun that
A University of Virginia professor believes he has discovered how to create a freeze-ray device, inspired by the Batman villain, Mr. Freeze. Rather than being a weapon, this device is intended to cool down electronics within spacecraft and high-altitude jets.
- www.sciencedaily.com Little bacterium may make big impact on rare-earth processing
A tiny, hard-working bacterium -- which weighs one-trillionth of a gram -- may soon have a large influence on processing rare earth elements in an eco-friendly way.
A tiny, hard-working bacterium -- which weighs one-trillionth of a gram -- may soon have a large influence on processing rare earth elements in an eco-friendly way.
"Traditional thermochemical methods for separating lanthanides are environmentally horrible," said Buz Barstow, assistant professor of biological and environmental engineering at Cornell, the corresponding author. "It's difficult to refine these elements. That's why we send rare earth elements offshore -- generally to China -- to process them."
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The Simplest Walking Robot -- only one actuator and two rigid bodies, and cute, too!
YouTube Video
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- www.sciencedaily.com Surprising discovery shows electron beam radiation can repair nanostructures
In a surprising new study, researchers have found that the electron beam radiation that they previously thought degraded crystals can actually repair cracks in these nanostructures. The groundbreaking discovery provides a new pathway to create more perfect crystal nanostructures, a process that...
Not sure how useful it is yet, but it sounds like with some AI and proper cameras you could use it to completely repair certain components. Theres something similar to this using electrochemical plating to repair microfractures throughout a component - only downside is that it takes like weeks to do it properly (I'll see if I can dig up the paper later)
- www.scientificamerican.com New Glasses Can Transcribe Speech in Real Time
Glasses that provide subtitles for conversations could be a boon to people with hearing loss
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Coolest Christmas Gifts for a MechE?
Looking for some ideas for friends and coworkers. If anyone can think of anything cool, I'd love to see it.
- www.wired.com The Rebel Drone Maker of Myanmar
In a cave in eastern Myanmar, a young engineer who goes by the nom de guerre “3D” is building weapons to fight against a brutal military dictatorship.
- www.sciencedaily.com Researchers create method for making net-zero aviation fuel
An interdisciplinary team of researchers has developed a potential breakthrough in green aviation: a recipe for a net-zero fuel for planes that will pull carbon dioxide (CO2) out of the air.
The proposed fuel is not SAF, it's a combination of magnesium and hydrogen mixed with hydrocarbon fuel. It's estimated to give 8% more range over other existing aviation fuels.
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Can we post mechanical engineering related memes here?
Engineering memes was a favorite on a similar site that I used to use, wondering if this community would want some too
- jalopnik.com Leaked Email Shows Elon Musk Demanding "Sub 10 Micron Accuracy” Cybertruck Parts
Tesla is facing issues with the bare metal construction of the Cybertruck, which Elon Musk warned was as tricky to do as making Lego bricks
cross-posted from: https://kbin.social/m/[email protected]/t/384191
> Tesla is facing issues with the bare metal construction of the Cybertruck, which Elon Musk warned was as tricky to do as making Lego bricks
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Questions about motorbike gearbox
I just came across this video about a motorbike gearbox, and have a couple questions.
Firstly, she says the detent for neutral is between first and second gears. Why isn't it between fifth and first? That would seem to make more sense to me. Are you expected to shift down to first when setting off, then shift back over neutral to get to second? And presumably the grooves in the shifting drum have gaps between fifth and first to stop you shifting too high and ending up back in first, or is there another mechanism for that?
Secondly, and probably more importantly for my understanding of the transmission, can someone elaborate on how the 'constant mesh' transmission means it doesn't need synchronisers? For example, before the shift from neutral to first is shown, the input shaft, and the first free-wheeling gear with it, are rotating while the output shaft and the corresponding dog clutch are not. Surely, when the dog clutch is moved to connect with the free-wheeling gear, they wouldn't be able to mesh, unless it happened right when the recess and pin were in line, and even then that would cause a jolt. What am I missing here? I also watched another video with a physical gearbox, which seems to confirm that it works like in the first video, but doesn't explain it much, and I can't really see why it works.
I just posted this at [email protected] but realised it doesn't have much activity, so hopefully it fits here.
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Need help sourcing viscosity and density vs temperature for JP-8 and other aviation fuels.
Why is it so difficult to find a good source for this information? I can find half a dozen research papers but no real good centralized source for these things.
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MechE's, what would you like to see in this community?
Hello everyone!
I'm looking for suggestions in how we can grow and develop this community. We have a chance to develop something interesting and the impetus of this change will rely upon all of us to make it happen. Are there any ideas that you'd like to see implemented here? Community events? Challenges? Support?
I'd love to see this place flourish, and anything that I can do to draw interest would be fantastic.
Thanks for your suggestions!
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Discussion Thread: How has AI affected your workflow?
I understand that this could be rather controversial, but I feel like AI is coming whether we wanted to or not. I know some companies have already started taking steps towards AI and automation in general, others are avoiding it until it becomes more robust.
How have you or your company integrated AI into your workflow so far?
Do you believe that you've benefited from the use of AI at your workplace, or do you feel like it's introducing more problems than it's solving?
- 507movements.com 507 Mechanical Movements
Five Hundred and Seven Mechanical Movements, now Animated for the Internet.
The coolest page on the net I know of for mechanisms. What's your favourite in here?
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Inventor Worldcup Challenge! Anyone remember these?
The goal was to time how long it took you to generate the model on your first attempt. It relied on user honesty as you don't really win anything, but atleast you could see how you stacked up against other CAD users.
You can confirm if you have the right design by checking the Volume of your component after you feel that you've "completed" the design.
I've done this one before. It's very fun.
If your interesting in trying it out, post your time below. I'm curious to see how you guys do. I'll post my time on Monday.
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How many people have worked on "configurators" or "smart assemblies"?
I've been interested in possibly pursuing a new business opportunity doing this. I've noticed that almost every single company is interested in automation, however very few people within the company are actually able to do something along these lines as it's a twofold problem: you need someone that's extremely proficient in both CAD software and coding. And I'm not talking about just configurable parts, I'm talking full assemblies that have logic built into them, capable of updating or generating full drawings.
So I really wanted to gauge how often you guys have been exposed to it, and I wanted to know how many people in your company are likely even capable of doing it.
In my company of around 50-60 engineers, there are about 3. The third one would likely struggle a bit, but he'd likely be able to figure things out after enough time on forums.
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Got tired of waiting for an ME Community...So I made my own!
Hello everyone, there's nothing here yet, but I want/need this community within Lemmy. Assistance is sometimes necessary to learn and grow, and I'm trying to stay off of Reddit - which can be difficult when you've got questions to ask or things you need to discuss.
I'm hoping that we'll be able to create a robust and thriving ME community. Let's make it happen!