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.
Comment on brains!
bjorney@lemmy.ca 1 day ago
Brain uses more wattage than a lightbulb, unless we are counting incandescent bulbs because it makes the stat seem more impressive.
SuperIce@lemmy.world 1 day ago
disguy_ovahea@lemmy.world 1 day 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.
www.ncbi.nlm.nih.gov/books/NBK28194/
Tar_alcaran@sh.itjust.works 1 day 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.
MonkderVierte@lemmy.ml 17 hours ago
That’s rest consumtion tho.
disguy_ovahea@lemmy.world 1 day ago
Well done. So even added to the electrical consumption it’s less than an incandescent bulb. Incredible.