Recent comments in /f/askscience
[deleted] t1_j4nyu6h wrote
Reply to comment by 5kyl3r in How do non electric heat operated fans work? by ranman12953
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Redditributor t1_j4nwshp wrote
Reply to comment by pm_me_good_usernames in How do non electric heat operated fans work? by ranman12953
Are Amish a subset of Mennonite?
Tasty-Army200 t1_j4ntwii wrote
Reply to comment by TheLostHippos in Which rodents have the largest territory? by WombatusMighty
Huh? No lol.
We're constantly given jobs to take apart pocket gopher areas which can cover extremely large areas.
They'll share food, communicate amongst themselves and share.
zebediah49 t1_j4ntrsm wrote
Reply to comment by willdood in How do non electric heat operated fans work? by ranman12953
I happened to run into one of them a couple years back, and also happened to have a thermal camera on me at the time, and thought it was neat.
Temperature across a heat-powered fan on a wood stove. Note the nearly constant bottom section temperature, and a sharp 40F delta-T in the center where the thermoelectric pad is.
E: Sorry for the potato quality, but we're talking minimum budget FLIR Lepton here. And my MSX alignment is a bit off.
MyMomSaysIAmCool t1_j4nswy9 wrote
Reply to comment by Wedoitforthenut in How do non electric heat operated fans work? by ranman12953
TL/DR: They don't reject electricity or any other technology outright. They pick and choose the technology that will benefit them, and reject anything they feel is detrimental.
Long version: There's many flavors of Amish, and all follow different rules. Technology is allowed or forbidden depending on its impact on the community. Telephones? Some communities love them, it brings distant neighbors together. Cellphones? Yes, for the same reason. A smartphone that lets you spend all day scrolling Reddit, that's probably not going to fly because it'll separate you from your community rather than bringing you closer.
And there's also rules for what's allowed at work. A friend of mine bought a trailer from a PA company, and she was surprised to see Amish people driving forklifts, running power tools, arc welding, etc, as part of the manufacturing process. The Amish aren't held to the same standards when on the job, because doing so would make them unemployable.
So yeah, it's not as simple as it seems, and every community is a little different.
[deleted] t1_j4nrrk6 wrote
Reply to comment by Wedoitforthenut in How do non electric heat operated fans work? by ranman12953
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ZeroTrousers3D t1_j4nq1vg wrote
Reply to comment by rayfound in How do non electric heat operated fans work? by ranman12953
The few Mennonites I've known have all had phones, electric lights, fridges, stoves, etc. The basic, functional stuff. One guy even kept an old laptop for doing his books.
The way it was explained to me is that modern stuff that's used to a 'good' purpose like phones for urgent communication and business, or electric refrigeration to keep food from spoiling are okay; but things meant to entertain or replace "the work of human hands" is not.
[deleted] t1_j4nookh wrote
Reply to comment by gh0stwriter88 in How do non electric heat operated fans work? by ranman12953
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[deleted] t1_j4niu15 wrote
Reply to comment by Painting_Agency in How do non electric heat operated fans work? by ranman12953
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edjumication t1_j4nildw wrote
Reply to comment by gh0stwriter88 in How do non electric heat operated fans work? by ranman12953
Actually in this case the wiring and electric motor are 100% efficient. Any energy lost will eventually end up as heat which you are trying to release into the room anyway.
[deleted] t1_j4ni7dq wrote
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[deleted] OP t1_j4ng7rc wrote
[deleted] t1_j4ng4zw wrote
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TheLostHippos t1_j4nf5xd wrote
Reply to comment by Tasty-Army200 in Which rodents have the largest territory? by WombatusMighty
Compared to most gophers its extremely similar if not significantly more. Most gophers live solo outside of mating and breeding.
HolyGig t1_j4ndq4e wrote
Reply to comment by superheavydeathmetal in Is there an upper limit on the size of a ship? by LilyFish-
We don't build wooden ships anymore. There are no size limits for steel, and eventually the ship gets so big that weather just won't affect it much.
The Seawise Giant was 2.5x bigger than an American supercarrier. If there were a shipyard big enough to do it, there is nothing stopping us from building a ship 10x bigger, or even 100x bigger except the price tag and the lack of logical reasons to ever build such a ship due to how impractical it is
Painting_Agency t1_j4ncuve wrote
Reply to comment by pm_me_good_usernames in How do non electric heat operated fans work? by ranman12953
> Mennonites
There are at least a few Mennonites attending the veterinary school where I work. Women, otherwise honestly I might not have recognized them as such. They show up wearing their home sewn dresses and bonnets, and go to classes in a teaching hospital where they learn about every high-tech treatment that veterinarians now have access to.
ranman12953 OP t1_j4nbu7z wrote
Reply to comment by 5kyl3r in How do non electric heat operated fans work? by ranman12953
Now thats a really informative answer. This person knows some things.
[deleted] t1_j4nap5m wrote
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Chagrinnish t1_j4n9kr9 wrote
Reply to comment by nakrimu in How do non electric heat operated fans work? by ranman12953
If it's not under warranty you can get a replacement if you google "CD motor" or just tear apart an old CD player.
Inutilisable t1_j4n7mm4 wrote
Reply to comment by SacredRose in How do non electric heat operated fans work? by ranman12953
I designed lab equipments with precision pistons made of graphite in glass tubes. It’s really good but it is expensive, especially in low quantities, something like >40$ for 1/2” diameter piston, a few inches long. There was no other way to get low friction. I imagine that other constraints gets involved when you want to get any useful energy from it, at large scale.
dogswontsniff t1_j4n7f20 wrote
Reply to comment by gh0stwriter88 in How do non electric heat operated fans work? by ranman12953
Unfortunately, the heat rising off the stove produces way more vertical force than these produce horizontal force.
It's better than nothing if you got one for free, but a simple box fan can move wood stove air at a much lower cost effective price.
Looks like r/woodstoving is leaking. We get questions about these things weekly.
Merely a neat looking gimmick
cream_of_slop OP t1_j4o1679 wrote
Reply to comment by DaylightsStories in How does my pumpkin plant not get sick when a pumpkin rots on the vine? by cream_of_slop
The original comment was removed but…
I also agree that rot is part of the normal process but HOW is this contended with?
Maybe I’m just dense, but if a part of a mammal started to necrose while still attached to the organism, there would most likely immediately be an infection present and they would probably go septic.
Nature leaves no opportunity wasted, I think it’s safe to assume that there must have been some bacteria or something like that on the flesh.
Maybe my main lack of understanding is that I am stuck thinking about how my circulatory system works, as another commenter suggested.