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The EU should use Joules not calories (en.wikipedia.org)

submitted 1 week ago by NorskSud@lemmy.pt to c/buyfromeu@feddit.org

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Joule is the metric system unit to measure the energy in food, however we still see calories being used everywhere, specially advertising and fitness influencers. Let's stop this nonsense.

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[–] gandalf_der_12te@feddit.org 7 points 1 week ago (1 children)

i already do. a person requires 8 MJ of energy/day, that's about 100 W on average.

[–] rbn@sopuli.xyz 1 points 1 week ago (1 children)

Can you explain the maths on that?

I thought 1 Joule equals 1 Watt for 1 second. 8 MJ = 8000000 Ws. If you divide by 3600 (60 * 60), you get ~2222 Watt hours or 2.222 kWh.

[–] B0rax@feddit.org 2 points 1 week ago (1 children)

There are 24h in a day. Divide your number by 24 and it will roughly match.

[–] rbn@sopuli.xyz 2 points 1 week ago

Thanks! I guess I was a bit confused there. 🙈