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[-] bjorney@lemmy.ca 2 points 1 year ago

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

[-] disguy_ovahea@lemmy.world 7 points 1 year ago

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 year ago* (last edited 1 year ago)

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 year ago

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

[-] psud@aussie.zone 1 points 1 year ago

But not electrical. 20W of power, but not electrical power

[-] MonkderVierte@lemmy.ml 1 points 1 year ago

That's rest consumtion tho.

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this post was submitted on 22 Nov 2024
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