echodot comments on Blood is blue until exposed to oxygen

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[–] echodot@feddit.uk 45 points 1 year ago (4 children)

Even as a kid I thought that was stupid. If blood is blue in the body and only turns red when it touches oxygen, then why is it red in the water?

I was told that's only in the movies. In real life it would be blue.

But then again I got a detention for arguing that the moon is visible during the day. The detention was because I pointed out to the window and said look, and she was embarrassed.

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[–] RedRibbonArmy@sh.itjust.works 9 points 1 year ago

The answer is obvious, dissolved oxygen in the water--duh!

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[–] Rooster326@programming.dev 5 points 1 year ago

Because there's oxygen in water. That's what fish breathe!

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[–] Whats_your_reasoning@lemmy.world 4 points 1 year ago (1 child)

The detention was because … she was embarrassed.

Ohh yes, classic detention for proving the teacher wrong. There’s a depressing amount of teachers who rule by their ego instead of by science. It’s why I now consider my school discipline record as a source of pride instead of shame.