this post was submitted on 22 Nov 2024
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Science Memes

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[–] blandfordforever@lemm.ee 79 points 1 month ago (2 children)

Contrary to popular belief, we're all profoundly stupid. Even the smartest among us spend enormous effort in their struggle to comprehend our surroundings.

[–] esc27@lemmy.world 35 points 1 month ago (3 children)

At least half of us are below average.

[–] Eheran@lemmy.world 33 points 1 month ago (1 children)
[–] yogurtwrong@lemmy.world 6 points 1 month ago (1 children)

But in a perfect bell curve, isn't the median always the same as the average?

And even if it's not a perfectly symetrical bell curve, aren't they generally close enough to ignore the differance

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[–] FinalRemix@lemmy.world 13 points 1 month ago (1 children)
[–] Imgonnatrythis@sh.itjust.works 15 points 1 month ago (23 children)

It's not. I assure you there are far more outliers on the low end.

[–] milicent_bystandr@lemm.ee 8 points 1 month ago (1 children)

I endeavour to be as stupid as possible so more people can be above average.

[–] Imgonnatrythis@sh.itjust.works 5 points 1 month ago

America thanks you for your service.

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[–] abbadon420@lemm.ee 9 points 1 month ago (1 children)

If we're talking about IQ, than no. An IQ between 85 and 115 is considered average. This entails 68% of the population. So, only 32% of people are not average and only 16% are below average.

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[–] Empricorn@feddit.nl 2 points 1 month ago

That's quite a reduction and profoundly stupid. First off, the simple fact that-- WOAH, there's a wall here??

[–] pimento64@sopuli.xyz 64 points 1 month ago (2 children)

Maybe the brain will one day invent something more tiresome than watching reddit users exchange tautologies.

[–] Bishma@discuss.tchncs.de 62 points 1 month ago (1 children)

I often describe myself as "3lbs of mostly fat piloting a meat mech." To the point that my wife sometimes refers to injuries as malfunctions/damage to her meat mech.

[–] LillyPip@lemmy.ca 7 points 1 month ago

I’m an ugly bag of mostly water.

[–] papertowels@lemmy.one 58 points 1 month ago (1 children)

Fun fact, the average adult brain also has a credit cards worth of plastic inside. So that bacon has some company!

[–] TrickDacy@lemmy.world 8 points 1 month ago (1 children)
[–] AwesomeLowlander@sh.itjust.works 42 points 1 month ago (2 children)
[–] papertowels@lemmy.one 38 points 1 month ago* (last edited 1 month ago) (1 children)

Additionally, the average brain is about 1300 grams. 0.5% of 1300 is 6.5 grams, and plastic credit cards weigh roughly 5 grams.

0.5% is really hard for me to visualize. A credit card in everyone's brain is unfortunately easy.....

[–] Agent641@lemmy.world 15 points 1 month ago (1 children)

Once I put my head up to the EFTPOS machine and the payment actually went through

[–] voracitude@lemmy.world 14 points 1 month ago

EFTPOS is the fastest payment system in the world for identifying Australians on the internet. If you need to camouflage, you can use "card reader" instead. I don't know when you'd need to camouflage like that, but these are interesting times.

[–] MonkderVierte@lemmy.ml 37 points 1 month ago* (last edited 1 month ago) (2 children)

If we are talking facts, neurons don't use electricity, it's a cascade of released ion potentials. Thats why nerves are so much slower than electrical signals.

[–] psud@aussie.zone 16 points 1 month ago (1 children)

He should have said "power" not electricity

Humans dissipate power in the range of old tungsten lamps - on the order of 100W at rest, brains use about 20% of that, so 20W - about the same as an energy efficient globe

[–] Kbobabob@lemmy.world 4 points 1 month ago (1 children)

Hi. I'm just curious what part of the world you're from that light bulbs are called a globe?

Cheers.

[–] psud@aussie.zone 4 points 1 month ago (1 children)

Yeah we call them light globes in Australia, as well as bulbs

[–] Kbobabob@lemmy.world 3 points 1 month ago

Thanks. Never heard it before

[–] SoleInvictus@lemmy.blahaj.zone 16 points 1 month ago

It's really both, neurons communicate electrochemically. Neurons establish a voltage difference across their membrane, typically positive outside, negative inside, by concentrating ions on one side or the other. In a single neuron, the action potential (signal) results in the electric polarity of the cell membrane switching to negative outside, positive inside, with the change in gradient cascading down the length of the axon as ions are allowed to flow across the membrane by voltage-gated ion channels. After depolarization, ions are actively and selectively pumped to either side of the membrane, repolarizing it.

There's a lot more to it than that but it's 100% charge dependent. The change in charge is mediated by the flow of ions across a membrane instead of the flow of electrons through a conductor, hence why it's slower.

[–] NoForwardslashS@sopuli.xyz 31 points 1 month ago (1 children)
[–] PlantDadManGuy@lemmy.world 8 points 1 month ago

Prions are just like seasoning right?

[–] RubberElectrons@lemmy.world 19 points 1 month ago (3 children)
[–] Morphit@feddit.uk 5 points 1 month ago (1 children)
[–] RubberElectrons@lemmy.world 5 points 1 month ago

Fitting, really, to be a dream to meat.

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[–] P4ulin_Kbana 8 points 1 month ago (1 children)

You momma is FAT (with water and salt)

[–] espentan@lemmy.world 14 points 1 month ago (1 children)
[–] kautau@lemmy.world 11 points 1 month ago (1 children)

Yeah your momma’s so big she’s not even FAT she’s exFAT and can store files up to 120 petabytes

[–] rmuk@feddit.uk 8 points 1 month ago

Yo mama's like exFAT; she's got no permissions so anyone can access anything and her low requirements mean she gets embedded everywhere.

[–] thefartographer@lemm.ee 8 points 1 month ago

OP has a baby in their head

[–] nossaquesapao 7 points 1 month ago (1 children)

I Upvoted just for the tapioca mention

[–] MintyFresh@lemmy.world 3 points 1 month ago

Tapioca does sound good.

[–] weariedfae@lemmy.world 4 points 1 month ago

But poltergeist cat is real!

[–] bjorney@lemmy.ca 2 points 1 month ago (2 children)

Brain uses more wattage than a lightbulb, unless we are counting incandescent bulbs because it makes the stat seem more impressive.

[–] SuperIce@lemmy.world 37 points 1 month ago (5 children)

That phrase first came out when incandescent bulbs were the most common, so they consumed like 60W vs 7W for an equivalent LED bulb. The brain is somewhere around 20W.

[–] Imgonnatrythis@sh.itjust.works 6 points 1 month ago (1 children)

I don't give a damn about Lemmy points, but you just said essentially the same thing as the above commenter and the Lemmy points are diametrically opposed. I love it!

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[–] disguy_ovahea@lemmy.world 7 points 1 month ago (1 children)

It was estimated back when incandescent was standard.

Keep in mind that’s not accounting for energy consumed from neurons burning oxygen, which accounts for 20% of a human body’s consumption.

https://www.ncbi.nlm.nih.gov/books/NBK28194/

[–] Tar_alcaran@sh.itjust.works 9 points 1 month ago* (last edited 1 month ago) (2 children)

20% of your bodies energy is about 20 Watts.

Normal-weight humans burn about 2200 kilocalories a day, which is about 9.2 megajoules. There are 8640 seconds in a day, so that works out to roughly 100 joules per second, or 100 Watt. 20% of that is 20 Watts for the brain.

[–] disguy_ovahea@lemmy.world 2 points 1 month ago (1 children)

Well done. So even added to the electrical consumption it’s less than an incandescent bulb. Incredible.

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