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PSA: Human blood is not blue

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Atomic Playboy said:
No, it's blue when it's in your veins and then when it hits the air it turns red. Its called the Coriolis Effect. It's the same thing that gives Mars its color.
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This is the thing I am tired of hearing. The New Zealanders/British know what's up.
 
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HAL9000 said:
Do people actually think that?

The coriolis effect is to do with the curvature of the earth.
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Yes. It is a terribly false bit of information that people hear as a kid and cling to for dear life.

It takes hours to convince most people that they are wrong. The idea is deeply entrenched into their minds.

Most people don't think it has anything to do with the coriolis effect. They just think blood - oxygen = blue, and blood + oxygen = red, partially due to the circulatory system diagram that draws the tracts and blue and red plus the appearance of veins in skin.
 
Dumac said:
Yes. It is a terribly false bit of information that people hear as a kid and cling to for dear life.

It takes hours to convince most people that they are wrong. The idea is deeply entrenched into their minds.

Most people don't think it has anything to do with the coriolis effect. They just think blood - oxygen = blue, and blood + oxygen = red, partially due to the circulatory system diagram that draws the tracts and blue and red plus the appearance of veins in skin.
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Insanity.
 
humans-ancient-aliens-guy.jpg
 
I always wondered why; when a nurse removes blood with a hyperemic needle, the blood shows up as red in the vial. If there is no oxygen in the vial, shouldn’t the blood come out blue?
 
So, what color is a Vulcan's blood. Its copper based, and appears green in their veins. What color does it appear to be when comes into contact with O2?
 
Raizinman said:
I always wondered why; when a nurse removes blood with a hyperemic needle, the blood shows up as red in the vial. If there is no oxygen in the vial, shouldn’t the blood come out blue?
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/facepalm

Blood is never ever blue, never has been blue, never will be blue. It's dark red, or lighter red. Thats it.
 
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