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 2 months 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 2 months ago
disguy_ovahea@lemmy.world 2 months 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 2 months 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.
disguy_ovahea@lemmy.world 2 months ago
Well done. So even added to the electrical consumption it’s less than an incandescent bulb. Incredible.
psud@aussie.zone 1 month ago
But not electrical. 20W of power, but not electrical power
MonkderVierte@lemmy.ml 2 months ago
That’s rest consumtion tho.