this post was submitted on 31 Mar 2026
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Science Memes

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A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



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[–] Aeao@lemmy.world 2 points 11 hours ago

Spaceman meme

“It’s just boiling water?”

“Always has been”

[–] BeatTakeshi@lemmy.world 10 points 22 hours ago
[–] johnefrancis@lemmy.ca 20 points 1 day ago (8 children)

why are there 2 people in suits?

[–] WhiskyTangoFoxtrot@lemmy.world 11 points 21 hours ago

The third guy was busy that day.

[–] HeyThisIsntTheYMCA@lemmy.world 6 points 22 hours ago* (last edited 21 hours ago) (1 children)

gotta dress up to visit the machine god

don't wanna insult the machine god with my shabby shoes. wear my fancy shoes.

[–] PolarKraken@lemmy.dbzer0.com 2 points 11 hours ago* (last edited 11 hours ago)

Your machine god likes fancy shoes 😂 Embarrassing.

The generic suits depicted are sacrificial "meat candles". They do what they sound like, and everyone knows shoes just kinda get in the way and slow things down. Simple as. Power don't flow the same without a few of these suits startin to sizzle just right, oughta have yer meat candles primed before ya start 'er up.

Fancy shoes! The things ya read on the Internet, by golly.

[–] Noodle07@lemmy.world 13 points 1 day ago

Mandatory clothing in our utopian solarpunk society of course

[–] OldChicoAle@lemmy.world 5 points 22 hours ago

Someone needs to take credit for the work of engineers and manual laborers.

[–] NutWrench@lemmy.world 9 points 1 day ago (1 children)

Human sacrifices to the Turbine Gods.

[–] lightnsfw@reddthat.com 5 points 1 day ago

Have we even tried powering our turbines with CEO blood?

[–] AffineConnection@lemmy.world 3 points 21 hours ago

men in black

[–] Soup@lemmy.world 8 points 1 day ago

Stock assets to show scale, probably.

[–] nutsack@lemmy.dbzer0.com 6 points 21 hours ago (1 children)
[–] pedz@lemmy.ca 7 points 13 hours ago

I know this is a meme community but I was curious about this. It seems some birds do get burned, but not blasted. It varies a lot depending on the installation and it can also be mitigated. Also, the amount of birds dying from this is significantly lower than just the amount of birds hitting windows. For the benefit of other curious people, I'll try to condense the relevant information from wikipedia and the sources.

In more general terms, a 2016 preliminary study assessed that the annual bird mortality per MW of installed power was similar between U.S. concentrated solar power plants and wind power plants, and higher for fossil fuel power plants.

How it was calculated for fossil fuel

Sovacool estimated avian mortality from fossil fuel power plants across the United States as a result of collision with infrastructure, electrocutions, pollution and contamination, and climate change. In addition, Sovacool estimated climate change-induced avian mortality (in terms of habitat loss and changes in migration) predicted to be the result of fossil fuel power plant operations.

A preliminary assessment of avian mortality at utility-scale solar energy facilities in the United States: https://www.sciencedirect.com/science/article/pii/S0960148116301422?via=ihub

Review of Avian Mortality Studies at Concentrating Solar Power Plants: https://www.osti.gov/servlets/purl/1364837

[–] megopie@lemmy.blahaj.zone 38 points 1 day ago (1 children)

I really like the concentrated solar systems that use molten salt, where rather than heating water directly, molten salt is heated and stored In large insulated tanks and tapped off to a heat exchanger to run the turbines, thus allowing power generation to match demand and continue at a constant rate even when light level very (such as at night).

One interesting idea is to use a concentrated solar system to run an Einstein–Szilard refrigerator, or some other absorption refrigerator cycle.

[–] rothaine@lemmy.zip 4 points 23 hours ago (3 children)

What are the tanks made of? "Molten salt" sounds like it would fuck up most materials

[–] megopie@lemmy.blahaj.zone 7 points 20 hours ago (1 children)

Various common steels with a bunch of insulation around it usually, sometimes with a thin coating. The potassium/sodium/calcium nitrate mixes that are used with concentrated solar systems operating in range between 200 C and 600 C. So like, yah you don’t want to touch it, but it’s not gonna do much to steel. It can be somewhat corrosive, but, this is fairly easily mitigated by design.

Molten salt for heat transfer and thermal storage is a pretty mature technology that goes way back before we started using it in concentrated solar systems.

[–] how_we_burned@lemmy.zip 3 points 16 hours ago (1 children)

Molten salt for heat transfer and thermal storage is a pretty mature technology that goes way back before we started using it in concentrated solar systems.

Isn't the core problem with anything that uses molten salt is that when the heat ~~sauce~~ source (thanks autocorrect, really, the context in that sentence means you should suggest "sauce"?) fails you just end up with a huge lump of solid salts that clog every part of your system?

The Russian Alfa class had a similar problem due their use of lead-bismuth heated into a liquid.

When they lost power for whatever they'd essentially end up being written off as reheating them was incredibly difficult and very tricky.

[–] megopie@lemmy.blahaj.zone 1 points 13 hours ago

molten salt systems can be fail safe by having the coolant drain from parts of the system that can’t operate with solidified salt in them, even if they do, you can sends someone with a heating element to remelt the system at critical points before turning it on. It’s not like water where the coolant will physically expand and burst things when it freezes, water’s actually pretty weird in that regard, most things take up less volume when they freeze.

I don’t know why they couldn’t do the same for an alpha class, but I suspect it’s because running the reactor without coolant in it would have caused a melt down, and if any coolant was left inside it when turned off, the control rods would have been frozen in place preventing it from being restarted. Perhaps in such a tightly sealed system, the shrinkage caused by cooling could have caused things to break as well.

[–] djdarren@piefed.social 9 points 21 hours ago (1 children)
[–] OldManWithACane@lemmy.zip 3 points 19 hours ago

If you're gonna build it, you might as well over-build it I guess...

[–] I_am_10_squirrels@beehaw.org 3 points 20 hours ago

As a first guess, I would use glass fused to steel tanks. I would need to do a detailed look at material compatibility, talk to vendors, and run some bench scale studies before I moved forward with anything.

Source: am licensed engineer

[–] humanspiral@lemmy.ca 19 points 1 day ago (1 children)

This is old technology that is more expensive/complicated/maintenance-ey than PV. An economic falacy is that if you have oil/fossils you should use that instead of solar. It's always better to use cheapest energy. Export the fossils, import solar. It is more jobs to have solar as well, and in fact most of the deployment costs are local work/materials (wiring/support structures).

[–] HeyThisIsntTheYMCA@lemmy.world 4 points 21 hours ago (1 children)

now hear me out. what if we just boiled water in it. why do we have to get all fucky with it.

[–] comrade19@lemmy.world 2 points 15 hours ago (1 children)
[–] HeyThisIsntTheYMCA@lemmy.world 1 points 13 hours ago

Right? Think of all the pigeons we could flash fry

[–] queerlilhayseed@piefed.blahaj.zone 148 points 1 day ago (2 children)

It turns out spinning things is really useful and boiling fluids is a convenient way to spin things.

[–] state_electrician@discuss.tchncs.de 72 points 1 day ago (3 children)

It's still funny that so much boils down to steampunk with a fake mustache.

[–] f314@lemmy.world 15 points 1 day ago

boils down to

I see what you did there!

Wait, it's all steampunk?

Always had been.

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[–] fluffykittycat@slrpnk.net 42 points 1 day ago (4 children)

"I'll try spinning! That's a good trick!"

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[–] Bombastic@sopuli.xyz 20 points 1 day ago (1 children)

They can't keep getting away with this!!

[–] Alcoholicorn@mander.xyz 60 points 1 day ago (10 children)

Solar thermal is kinda obsolete I thought, now China is churning out PVs for pennies.

[–] freebee@sh.itjust.works 20 points 1 day ago (1 children)

But t solar boiler can still be useful in some cases. Where heated water in "solar" on the roof is used immediately for shower etc.

[–] Redjard@reddthat.com 8 points 1 day ago (2 children)

Modern solar into a modern heat pump is gonna be more efficient than heating water. It's also more versatile and convenient, cause it maintains that efficiency when you pull power from the grid at night. And of course lets you use the power for other purposes.

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[–] megopie@lemmy.blahaj.zone 11 points 1 day ago

Solar thermal has some distinct advantages when you start talking about really big instillations. Especially when considering power storage, molten salt systems can store heat and allow the generators to keep working even at night. Much cheaper than batteries at very large scales.

Thermal solar systems are generally very efficient when the goal is heating something, not just generating power. So say, you want to run an ammonia plant without burning natural gas, or if you want to melt down metals for recycling. There are so many industrial applications where it’s a better way of doing it than using an electric heating element.

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[–] EmptyAsparagus@piefed.social 8 points 1 day ago (1 children)

guys its literally in fallout, so its canon.

[–] oppy1984@lemdro.id 38 points 1 day ago

It all boils down to steam....

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