I have always wondered why I was taught in school for so long and it turns out that apparently lots of other people were taught this too.
The only reason I can think if that we were raight that blood in the body is blue is because our veins look blue. But does anyone know where that myth came from or why kids are still being taught this today?
Think you were on the wrong school or maybe planet
Yeah, no.
Then it can only be the country , murica
Everyone here slamming you for asking, but I’m just now learning from this thread that that’s not true.
No seriously, I’m just wanting to find out where this myth came from/why it started.
Did NOT expect people to call me stupid.
If your school taught you that it was a shitty school.
“We” weren’t because we had competent teachers. I do not know a single soul who was taught nonsense like this.
Well, I was taught this, so there🤷🏾♀️
I do love the level of gaslighting in this thread
Were you? Or were you not quite paying attention and misinterpreted the picture while not listening to the teacher properly?
I remember the picture with the blue veins. I also remember being taught that blood goes from dark red to bright pink, depending on oxygenation.
Nope, I was absolutely taught that blood in the body is blue until it reaches oxygen. Was paying perfect attention and that is what I was taught
I’ve only heard it recently that it isn’t actually blue before getting oxygen and it made me wonder if that is true, how come veins look blue through the skin? 🤔
Some teachers have no idea about things and still try to teach them. They aren’t different from other people there.
We were taught a lot of stupid shit in elementary school, because the teacher was a crank and proud of it. I remember vividly how he tried to explain the density anomaly of water (to ten year olds) by saying that atoms in solid objects move faster than in liquids and therefore need more space. I didn’t believe one word of it.
I remember my second grade teacher saying that stars aren’t actually suns, they are just specs of light in the sky, and they don’t get much bigger once you get close up to them. In hindsight I’m baffled that someone with such a simplistic worldview actually managed to meet the educational requirements for being a teacher.
Did you go to school during a period of time where there wasn’t access to information on the Internet? Old wives’ tales had more legs back in the day because you’d have to visit a library and open a card catalog to disprove them.
No.
I’m not that old.
Im only 22
You had some dumbass teachers.
Your school was beyond garbage. In my school they explained to me how hemoglobin works and why it’s red. (it’s because of Iron atom that captures specific wavelengths)
I never heard that while growing up, and would have thought that anyone who believed it was a dumbass. Ever see blue blood? No. Case closed.
Then I grew up, and found out that some people believe it, even as adults. Truly dumbasses.
The myth was it turns red when exposed to oxygen hence in veins its blue but out of the body it gets red
where was your school?
The Midwest.
default country of course
Huh?
Nvm, whatevs🙄😒
I think most people that think they were taught this in school actually just heard it a lot from random friends and acquaintances, as I did. I heard this all the time but never from a scholarly authority.
YMMV, of course.
I always understood that as like, a visual aid. So illustrations of red blood shows it’s carrying oxygen and the blue blood shows it has lost the oxygen, without delving into the molecules and how they gain and lose electrons.
Hypoxemia, hypo meaning underneathe, ox meaning oxygen, and emia meaning presence in blood
I wasn’t taught that in school.
You were taught by a science teacher with no science background who didn’t read the book. That often happens in districts that underfund their schools.
