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vlachen

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Submissions

“Fluid gears” invention offers promise for improving mechanical devices

phys.org
33 points·by vlachen·6 mesi fa·54 comments

Recreating an Ancient Pump with No Moving Parts [video]

youtube.com
4 points·by vlachen·6 mesi fa·1 comments

The Ridiculous Engineering of the Most Important Machine [video]

youtube.com
10 points·by vlachen·6 mesi fa·2 comments

comments

vlachen
·30 giorni fa·discuss
These are the books I read when I feel like I'm too optimistic about world affairs. The dark themes that seem so close to being possible help boost my cynicism and level me out.
vlachen
·2 mesi fa·discuss
I saw IT Chapter II in a completely empty theater, late at night. It was delightfully creepy. However, if I had been an employee there, I think I would have do do something with a red helium balloon to anyone watching that movie alone.
vlachen
·3 mesi fa·discuss
I firmly believe that William Gibson nailed it with the Jackpot in his recent books:

nothing you could really call a nuclear war. Just everything else, tangled in the changing climate: droughts, water shortages, crop failures, honeybees gone like they almost were now, collapse of other keystone species, every last alpha predator gone, antibiotics doing even less than they already did, diseases that were never quite the one big pandemic but big enough to be historic events in themselves.
vlachen
·3 mesi fa·discuss
I'm taking the submission as: if you've got an idea, here's some methods to work build something.

I have a few ideas if my own, perhaps yours is something that could be created.
vlachen
·3 mesi fa·discuss
Aim to Head's mix channel is a lot of what I listen to for my design work. 30 min to 1 hour of well mixed tracks. The Witch House tracks are partially helpful in focusing.

https://m.youtube.com/@aimtoheadmix1915/videos
vlachen
·3 mesi fa·discuss
I find that the Secret Agent channel is great for my focus nowadays. I recall listening to Groove Salad back in my draftsman years, from 2000-2002. I am still amazed at how SomaFM has continued to exist.
vlachen
·4 mesi fa·discuss
Hard pass. Karst limestone is bad enough.
vlachen
·4 mesi fa·discuss
A friend of mine retired from the military and moved to my neck of the woods in the Ozarks. Having lived in Eastern North Carolina for most of his 20 years in, he had gotten used to sandy soil with nary a rock. Prior to that, he was in the Twin Cities of Minnesota, and I don't think he dug many holes there.

After closing on their new house he asked me for a shovel, for which to install a mailbox. Of course I'd help my friend out. "Sure, buddy!" I said. "Here's a shovel, post-hole digger, pickax and a rock-bar. That should get the job done." After I explained to him that yes, you need a 20 pound pointy chunk of steel to dig any sizable hole around here, he still didn't quite believe me. However, once he got the mailbox planted, he adjusted his beliefs accordingly.

On the rare occasion that I have to dig a hole somewhere with actual dirt, I always find myself amazed at how easy it is. Those times help me understand scenes in TV or movies that include someone digging a hole. Those scenes don't ever depict someone deciding to move whatever it is they're putting in the ground because they hit a massive stone at 8 inches into a 24 inch hole, and there ain't any getting through it. The scenes don't depict the Herculean effort required to just plant a tree. Those shows don't show the absolutely back-breaking labor it takes to be a landscaper around here. And before I had the chance to do the same kind of work in actual soil, those scenes just didn't make sense.
vlachen
·5 mesi fa·discuss
I highly recommend watching his live show if he's ever in your area. Great experience. Henry is the epitome of intensity for 2 hours. He doesn't stop. He doesn't sit. He doesn't drink. I'm not even sure he breathes.
vlachen
·6 mesi fa·discuss
Having been out of university since before Discord was much of a thing, that's news to me. It also is eerily reminiscent of Facebook's beginning sign up requirements.
vlachen
·6 mesi fa·discuss
I'm not a fan of the bias towards "Gears are old tech, and that makes them bad" but I can see a lot of interesting possibilities with fluid coupling. The variables involved in power transmission for these things would be pretty wild to characterize, and the article video clearly shows inefficiencies in the system with the driven cylinder having counter rotational flow against it.
vlachen
·6 mesi fa·discuss
Bozhe moy! [1]

[1] https://tomlehrersongs.com/lobachevsky/
vlachen
·7 mesi fa·discuss
That's a fair point that I arrived at once I put half a second of thought into what I was actually asking.
vlachen
·7 mesi fa·discuss
That brings me to the next thing: Taking VPN suggestions. What's the best? I like secure.

Edited to remove being a moron.
vlachen
·7 mesi fa·discuss
I left the high seas many years ago, but I'm down to seed for a cause.

What's the best torrent client nowadays?
vlachen
·7 mesi fa·discuss
Another technique for me is to avoid apps like Instagram, Facebook and Youtube. I run them all through mobile Firefox with uBlock origin and custom block scripts that block sponsored posts and shorts. This combines well with having Youtube's history turned off which prevents the algorithmic suggestions.
vlachen
·7 mesi fa·discuss
I've taken to "Archiving" apps like this on my Android phone. When I need it, I can un-archive it to use it. Keeps the list of things trying to get my attention a little bit smaller.
vlachen
·7 mesi fa·discuss
An obvious failure of the Cat Distribution System.
vlachen
·7 mesi fa·discuss
In 2013 I bought out 2 Radio Shacks worth of ferrite beads when I was hunting down signal noise in my senior design project (CNC mill rebuild and update.) All else fails, add more beads.

Also, I learned that you can make your own shielded flat cables with aluminum duct tape.

Who knew that they had a really good reason for using 48V signaling in the original machine controls from 1986?
vlachen
·8 mesi fa·discuss
I've used the "Harbor Freight" principle for years when purchasing tools for either professional or personal use. I'll buy something I need at a discount store like Harbor Freight and use it for as many jobs as it lasts. If it breaks and I still need it, I'll upgrade to a better version. If it doesn't break then all the better.