science_memes

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fireweed, (edited ) in Types of Climate Paper

They missed “environmental catastrophe unrelated to climate change that is getting ignored because it’s unrelated to climate change”

Soil depletion, micro plastics, habitat loss, fertilizer runoff, invasive species, heavy metal contamination, light pollution, etc etc. Yes climate change is a big fucking problem, but if it were to magically get resolved overnight we’d still wake up to a mountain of other human-created environmental issues. But because everyone is so focused on climate change specifically, we’re standing still (or even moving backward) on other issues. For example: electric cars are heralded as an environmental solution, but they: still require a lot of mining and resource extraction, still pollute through tire and brakepad wear, still produce a mountain of waste at the end of their lifespan, still use asphalt roads that require salting in winter, and still promote poor land use that creates all kinds of domino-effect problems (environmental and otherwise). Similarly hydroelectric is promoted as a sustainable energy source, but they wreak absolute havoc on river ecosystems.

onceuponaban,
@onceuponaban@kbin.social avatar

Isn't habitat loss at least in part due to climate change as well?

fireweed,

Sure some habitat loss is due directly or indirectly to climate change, like polar bears, seals, and penguins losing the ice they need to breed and/or feed. But other instances are completely unrelated. For example, monarch butterflies in North America have experienced huge decreases in population due to an increase in herbicide use that destroyed massive numbers of milkweed plants, the only plant they lay eggs on, as well as destruction of the trees the monarchs over winter on in Mexico (eg through clear-cutting for avocado farms). Climate change has also hurt monarchs in various ways, but the specific issue of monarch habitat loss is generally unrelated.

TheOneCurly, in I've invented a 100% efficient combustion engine
@TheOneCurly@lemmy.theonecurly.page avatar

It’s only 100% efficient if you’re also letting all the exhaust into the house too…

buycurious, in I've invented a 100% efficient combustion engine

Sorry, I’m a bit dumb for this one.

Could someone please explain?

18107,

Most engines are less than 30% efficient at producing movement. The majority of the energy is lost as heat.

Thermodynamics tells us that pretty much all energy ends up as heat. In a closed system, any device that uses energy is 100% efficient at making heat. A 1000W computer will make exactly as much heat as a 1000W heater.

A 100% efficient engine can only exist if the desired output is heat, thus making it a pretty useless engine. Also, in a closed system, the exhaust cannot leave.

RvTV95XBeo,

A 1000W computer will make exactly as much heat as a 1000W heater.

All space heaters should be coin miners (or some other borderline useless energy wasting tech, like AI training). Change my mind.

owenfromcanada,
@owenfromcanada@lemmy.world avatar

If you want to be philanthropic, there are programs you can run that use your computer’s idle time to process data for cancer research and such.

wahming,

We have enough of a chip shortage, tyvm

someguy3,

You can sign up for research crunching.

someguy3,

Furnace.

Hello_there,

But even a furnace/fireplace is subject to incomplete combustion, where some portion of the wood is transformed into byproducts that rob some of the energy of the fire. There's actually a big difference in the amount of energy you can get out of a fire, depending on the type of stove that's used.
That's some of what NGOs have tried to do for developing countries - find cheap and easily produceabke stove designs that can reduce the amount of wood needed and improve air quality in the home.

someguy3,

Yes he is incorrect. NG furnace is 95% efficient iirc.

DemBoSain,
@DemBoSain@midwest.social avatar

There’s no such thing as a 100% efficient “engine”. But in this case, since the waste heat is put to use (heating the house), OP thinks there’s a loophole.

But, house would also need to be soundproof. Any noise leaking to the outside is lost energy.

someguy3, (edited ) in I've invented a 100% efficient combustion engine

Fyi I think they’re around 95%.

muntedcrocodile, in I've invented a 100% efficient combustion engine
@muntedcrocodile@lemmy.world avatar

Wait till you hear about reverse cyxling air conditioning it exceeds 100% efficiency.

mvirts, in I've invented a 100% efficient combustion engine

Ive been testing combustion engines made of wood but keep getting more energy out than I put in…

MeowZedong, in How many scientists does it take to open a bottle? The bottle:
@MeowZedong@lemmygrad.ml avatar

Lab tech: opens with one hand anyway

TankieTanuki, (edited ) in How many scientists does it take to open a bottle? The bottle:

My lab used bottle caps with four holes in them for mobile phase intake. I’ve never seen a single bottle used for more than a couple HPLCs, but I suppose there are niche use cases out there.

EmoDuck, in I've invented a 100% efficient combustion engine

I’m more impressed by that fact that if either runs perfectly silent or that your house has perfect sound insulation

18107, (edited )

I have a spherical frictionless house in a vacuum.

EmoDuck,

In this economy?

Crackhappy,
@Crackhappy@lemmy.world avatar

At these prices?

rigatti, in anti meme
@rigatti@lemmy.world avatar

Check out all of the science in this meme.

Kbin_space_program,

It's not even right, since the French were the ones that stole most of the artifacts out of Egypt. Then the English stole them from the French.

smallaubergine,

Transitive property

BleatingZombie,

THERE’S the science (math)! We found it everybody! It’s over here

AnUnusualRelic,
@AnUnusualRelic@lemmy.world avatar

That’s because we brought too many scientists to Egypt instead of soldiers like the Brits did.

BolexForSoup, (edited )
@BolexForSoup@kbin.social avatar

The joke is that the British have an incredibly problematic history literally centuries-old of taking things from other cultures and going “well, it’s ours the world’s now.“ Many of these communities have been asking them literally for decades to return them, but they simply won’t even to this day.

There was a time where they could maybe make the claim “this is the best way to preserve them,“ but for the vast majority of cases that time has long since passed and it was flimsy to begin with.

Diabolo96, (edited )

Mummies are indeed best preserved in the stomachs of rich aristocrats.

TopRamenBinLaden,

Those rich aristocrats better stay tf away from my Mommy then.

Diabolo96, (edited )

Don’t let your mommy become a mummy either.

(i fixed the typo. Thanks )

Kbin_space_program,

It's mostly due to early "archeologists" being almost entirely trust fund babies born into the aristocracy and to whom it was a contest to make the craziest claims possible.

See the OG trench at Troy that went completely past the end of the Bronze Age and dumped all of the important artifacts into a refuse pile that is apparently still being sifted through today.

Also see early "paleontologists" who seemed to use Dino bones in an attempt to make monsters scary enough to make kids cry.

Blackmist,

We didn’t just steal artifacts. We stole whole countries. At one point the empire covered a quarter of the planet. And it wasn’t that long ago either.

The artifacts were just the souvenirs.

BeigeAgenda,
@BeigeAgenda@lemmy.ca avatar

Okay, is there a /c/historymemes?

fossilesque, (edited )
@fossilesque@mander.xyz avatar

Perhaps it’s time to make one here?

Deuces, (edited )
MonsiuerPatEBrown, (edited ) in anti meme

Perhaps someday an earth cultural artifact will be absconded with to the Martian colonies or the lightly cloudy cloud city of Somewhataerosolopolis.

general_kitten, in I've invented a 100% efficient combustion engine

this is true only if you dont vent the exhaust outside making the air inside quite fun to breathe

Wilzax,

He burns h2

general_kitten,

so a heater and a humidifier all in one, now just have to make sure that it doesnt eat all the oxygen or make it rain inside

18107,

He doesn’t burn very well.

expatriado, in anti meme

in his defense, he goes by “Bad Jokes by Jeff”

Nacktmull, in anti meme

Well, they certainly took pieces of the pyramids to museums in Britain, just not whole pyramids.

someguy3,

They took the Stargate!

Whelks_chance,

That’s Cheyenne Mountain

clay_pidgin,

Negative, that’s just a NORAD deep space radar telemetry site. Nothing to see here.

WhiskyTangoFoxtrot,

Someone’s been watching too much Wormhole X-Treme.

clay_pidgin,

Is there such a thing? Physics tells us: no.

zalgotext,

The sheer amount of mummies they have on display at the British Museum genuinely made me uncomfortable. Walking through those exhibits, the main thought in my head was just “hey, you guys think you should put some of these back?”

spinelessorange,

Fun fact, that’s what’s left after the Victorian fad of eating mummies. Wiki link

Nacktmull,

Fun fact, I once got permabanned on r/artefactporn for saying they should.

Frogodendron, in Ever wonder if electrons get lonely?

Electrons are fine. They are in a band somewhere filling holes.

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