Is blood ever blue? - Big Questions (Ep. 17)
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- Опубликовано: 11 янв 2015
- A weekly show where we endeavor to answer one of your big questions. This week, pablo bribiesca asks, "Is blood blue when it is in an oxygen starved environment? And if so, how can I prove it?"
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Dr. Kienle's research: www.imt.liu.se/edu/courses/TB...
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I like this guy. He's entertaining to watch.
He has his own channel (wheezywaiter) i would recommend this as he is, indeed, hilarious
Lara Latham Oh my gosh, I have the same surname as you!
Lara Latham Cool, I'll check it out!
I met Craig and his fiancee, Chyna, a VidCon last June.
Here is his website:
www.wheezywaiter.com
Indeed we do..... Cool.... Isabel latham
I used to get this all the time when I worked as a phlebotomist. A patient would make some comment about blue blood and I would explain to them that blood is never blue. They would still contradict me with the 'when it hits oxygen it turns red'. I would explain that the red blood I'm drawing has no oxygen in it (venous blood) and there is no air in the syringe (that's why it works, vacuum) and then they would have an existential crisis as they realize they had been living a lie.
I love Craig's straightforward sense of humor mixed with his unchanging indifferent expression. :D
Uh... Pork Chop Party Fund?
Hello?
Yeah that was my main through too!
I think its only when John says something pig related.
***** Anything related to pigs counts.
not a fan of taco bell then it'll take them forever to get that pork chop party.
:c
Does Craig actually record in Indianapolis like John or is there a separate studio for him in Chicago?
topher208 He records on the same set. He mentioned once in one of his vlogs that he'll drive from Chicago to Indianapolis to record these.
So, if during surgery your skin were peeled back, a vein that previously appeared blue through skin would be red?
Red, if somehow there was no skin between your eyes and your veins the translucent veins would just show your red blood.
Turn your face towards a bright light and close your eyes. You should see the same effect although only for a little while.
Moazzam Abdullah Khan It's best not to do that in that order though ;).
You get what I mean though :)
Yep. They look red on cadavers too. I remember from my human anatomy labs.
Did you know that my high school health teacher thought blood was blue? I know what you're thinking: "Oh but she was probably trained like 900000 years ago like every teacher!" No. She was trained... Last year. The whole class took like, 3 Heath classes to convince her blood was always red. Ladies and gentlemen, THE NEW ZEALAND EDUCATION SYSTEM!!!
In America, or at least my schools, you're NEVER taught blood is always red. You're always taught that it's blue inside you and once you get a cut or something it turns red because it touched oxygen. The way I had to learn it wasn't true was through unrelated science topics. Blood carries oxygen in your body. If it was blue in your body because it wasn't touching oxygen, well, that makes no sense. Because your blood is touching oxygen.
I was taught that tastes buds are in different sections of your tongue that tastes different types of flavors... amongst other things.
None of my teachers (American) ever told me that blood was ever blue. In fact, a few of them specifically told us blood is never blue. I do, however, remember my older brother telling me that, and me not believing him at first when I was pretty young (maybe about 6, which puts him at about 11). Weird how misconceptions stick around.
I live in the U.S. and I've never been told blood was blue. It's a dark murky red and is slightly lighter when oxygenated, not just in contact with it
In the us we're taught that blood is never blue
I really enjoy everyone who works for this awesome show! Keep up the good work, and good hire!
Fascinating video! Great job Craig!!
I was supposed to get a jag in school today but I have a massive phobia of needles and blood and I saw this a few mins after it was uploaded and I didn't look at the title and it took me ages to calm down it took my mum and brother so Thanks for that
I am surprised this is still considered a common misconception.
Did anyone else think it looked like he spat on Miss Piggy the first time she fell?
yes. i was mildly concerned.
Yes, why do you think he didn't?
Cause it was actually the sound of the toy falling off his leg.
THANK YOU CRAIG.
thanks for teaching me that.
"Sarcasm, sarcasm." hahahaha I don't know why it killed me, but it did lol
My big question: What is the poof thingy found on the top of stocking hats and what are they used for?
Question: Am I more susceptible to getting sick if I am doing something that makes me sweat when it is cold out with my jacket on or off?
"Is blood ever blue?"
That depends.. are you a horseshoe crab?
If you can lot's see dust in the air when a light is shone through it how come we're not constantly covered in dust (that we can see)?
Thanks, Christy.K
Ive been wanting a good answer for this for awhile.
thank you
Finally!
QUESTIONS:
How does the brain create consciousness?
Is there a limit to human intelligence?
How are bodies able repair themselves?
How does the brain work?
What triggers it to work?
Does human longing to be happy interfere with our chances to be happy?
Not sure they'll be able to tackle that one.
en.wikipedia.org/wiki/Hard_problem_of_consciousness
If you want to know this stuff, you should follow The Human Brain Project. If you remember The Human Genome Project(90s to 2000s), you'll know that we pretty much understand life at it's most basic level which is DNA and how it is interpreted onto a larger scale(which is still being researched). The HBP aims to do the same thing except with the brain, by mapping every single synaptic pathway in the human brain. Understanding this will let us answer these questions(which are mostly unknown right now).
That would be a really tough question to answer in a short video. Or a long video. Or a video. People have gotten doctorates trying to answer that and still don't totally get it. The brain is actually the ultimate imponderable...
Is the brain capable of understanding something as complex as itself?
Also, limit to human intelligence? Yes. Human stupidity? No. But anything that has a finite physical form will have finite capacity.
Trick Question
No, it cannot be done. Maybe the next generation scientist will, for now it cannot be done.
Correct answer: don't know
Is grass green, or do we only perceive it as green because it is the color being reflected back to the eyes? We discussed this in my philosophy class today, so I was curious about the answer from a scientific point of view.
However you should have mentioned that Horseshoe Crabs do have Blue Blood actually - as they use Copper as their Oxygen transporting element, whereas we use Iron in our Heme group.
Cewl
Same with octopus!
I have a question..
where does the phrase "Touch Wood" come from when people say it to avoid bad luck?
I know Hank talked about a related topic on Vlog Brothers but why is there 7 days in the week?
Lobsters have blue blood. This means that either lobsters are royalty or royalty are lobsters.
I have a Big Question: why do your joints hurt when the weather changes or gets bad?
What are muscle knots "made of", and why does massage help get rid of them (if it does)?
Knots in your muscles are kind of exactly what they sound like in some ways. Think of how people were in highschool when their first girlfriend/boyfriend broke up with them. They got all tight and wouldn't let go of the stress. That is kind of what your muscle is doing. What causes the knot though, is a collection, and congestion of waste byproducts that your muscles create in movement, collecting into a small point on your muscle, rather than flowing through your body properly. Massages don't always help, because they have to actually be massaging to encourage the flow and releasing the balled up byproducts, this is why you should only trust that a professional massage will help with any serious problems (normal massages sometimes encourage the flow, but can be done wrong easily, and are not attentive to the fine detail areas)
Where do the days of the week get their names? Monday, Tuesday, Wednesday, etc.
Tom Plant isnt it viking gods?
What does it look like inside of a cube that's made of two-way mirrors?
QUESTION:
Did people start calling nice places ritzy because of the Ritz Carlton hotel chain, or is the hotel named after the term? What came first?
What are there any animals with blue or other color blood
Where do we get the names of colors?
(A doctor here)
It's a very intriguing topic so I did a bit of research online. You are absolutely right that veins look much bluer than the blood flowing in it, which is normally just dark red rather than blue. However the same hue of red is also often described as a "bluish red" or sometimes "purplish red".
The other related question is, what is the colour of deoxygenated hemoglobin? While it's tempting to give the same answer "dark red", I find the answer a bit more contentious. My search online has revealed quite contradictory answers, with some claiming dark red and some claiming blue. It is very well possibly within the realm of possibility that PURE deoxyhemoglobin is blue, and that the reason venous blood is dark red is simply because it only contains 25% of deoxyhemoglobin and the rest is still the usual red hemoglobin.
I have a question for you guys. What is the history behind flipping someone the bird? I have heard several different origans, most of them mutually contradictory, and would like to know.
How fast do you lose muscle tone/strength after stopping exercise?
How fast do you regain muscle tone/strength when you restart your exercise program after a lapse?
What is the difference between viruses and bacteria (in terms of getting sick)?
Apparently I've been lied to all my life. But, then again, the "blue blood" misconception is most widely spread by first graders who want to show off that they know everything in the universe (and really, we're all like that at that age), so I suppose I shouldn't be surprised that it was wrong all along.
YAY!!! CRAIG!!!!!
Craig is the best host MentalFloss has. Yes, even more entertaining than John of the house Green himself!
Big Question- why do TV Channels start at 3? Why is there no Channel 1 or 2?
Wye is when you TV loses signal it makes the black and white dots and that very annoying sound ?
It's picking up radiation from around you, often parts of the cosmic microwave background (the leftover radiation from the Big Bang itself). That doesn't happen with digital cable, though, since that signal isn't wireless.
Can u please explain problem of quantum entanglement.
What cause your hair to be a different colors?
A whole dollar could have been put in the porkchop party fund if John hosted this video.
My name is pavel rebollar i have a question what would the world be like if there would be no shadows?
This should have been part of a misconceptions video. You should do one on misconceptions about the human body. I.e. the 10% of your brain thing and the "taste map."
There is also a bit of fun history to a word we use here in Greece for royalty, which is "γαλαζοαίματοι"(=someone who has light-blue blood). This was believed to be true, because they spent most of their days in their castles and palaces. Thus, they didn't get much sunlight and their skin was a lighter shade, so their veins were easier to see.
Thanks for the movie recommendation, I haven't watched it but I'll check it out. It sounds very farytail-ish(if that makes any sense). Have a nice day :)
That settles an argument I had when I was 12.
A teacher once told me this once. I asked her why donating blood through a SEALED tube with NO oxygen results in red oxygen. Then I asked her why she was teaching something she knew nothing about. It was hilarious...
Why does it feel good when joints crack?
What is fire? I know what it does, but what is it actually? I mean, there is friction or added heat and then BOOM heat and light burning things up.
How did red come to symbolize stop and green symbolize go?
new title: big questions phoned in
every time i see that craig is doing a video im just like "Oh god why me..." xD
Why do some countries drive of the right side of the road and others drive on the left?
Has there been studies were our main life is hidden or could be? Is it in a atom? Or our hear? Or the brain? I ask this question because the brain is amazing to act as its own life and make decisions on maintaining our body. And the cells are also alive working on their own taking orders from the brain and dying off later on.
I had all those Maccas toys except Miss Piggy. That was the one I was missing
Lovely Shakespeare reference!
Question: Why do only your hands and feet wrinkle when you go swimming or take a bath?
Your skin have sponge like property
I know why your skin wrinkles when your in water for prolonged periods, but I want to why only your hands and feet wrinkle. Why don't other parts of the body wrinkle?
Cronos Videography Because your humans bodys have adapted to water and the wrinkles are there for better grip under water.So your are body has been evolving ever since we were created.
What happens when we get itchy?
How does a Compass work?
is staying near you phone is bad? alot of people say that if you keep your phone close you gona have prbloms with making kids! please help
Why did popcorn become a movie theater staple?
I wonder if it is possible to become blue with certain diets or medications though. After all green blood is possible...
It's possible for your SKIN to turn blue, from various conditions (including, I think, silver poisoning). But I can't find any information about anything causing blue blood...probably because doing so would alter the chemical makeup of your blood and stop it from working, killing you.
Why does it feel good to have your back scratched?
Same reason it feels good to have anything scratched: it's physically removing any irritants, such as dead skin, mites, etc. The back is just a little more "nice" to have scratched because, due to its location, it's the least often scratched (and so has more time to build up irritants).
Big question: why are most alarm snooze times set for nine minutes? Why nine and not ten or six?
Amusing creature.
What is fire made of?
How does heat produce light? I know the heat energizes atoms to produce light, but are the energized atoms creating photons?
Yep. As you know, heat is the motion of particles. That motion is mostly random, and those particles often collide with each other. When two charged particles--like an electron from one atom and the positive nucleus of another--collide, their momenta (plural of momentum) shift rapidly. This causes some of that kinetic energy to be lost, and the interaction of the charges specifically converts the energy loss into a release of photons (because it disrupts the electromagnetic field).
Blackbody radiation. Everything is actually radiating light all the time, it's just not usually visible. Only when it gets to a certain temperature does the light become visible. That is why people glow on infrared cameras; the light we are radiating is infrared.
Ooooh! Awesome, thanks you guys :D
When an atom gets heat(energy), its electrons absorb it and jump to a higher energy state. They are very unstable in their in their excited state and thus loose the energy and come back to their ground state by RELEASING ENERGY(hv) in the form of an electromagnetic radiation.
Het Thakkar
This is true, but that's not the cause of black-body radiation. That's what causes, for example, a flame through copper solutions to be green. It's not what causes, for example, a bar of iron (or almost anything) to glow red when heated.
Why is the new year on January First?
Ill start off by saying i know bloods not blue. but if it apears blue because thats the light bouncing off it and its red because of other light bouncing off of it and if nothing sees it as red is it then not just blue
Hey Mental Floss answer this question. Why are you so awesome?
makes me wonder what color will our blood be if we have gold, silver or platinum in our blood in stead of iron
or is it even possible?
No, gold , silver, and platinum have no property similar in iron for absorption of oxygen so you cannot create blood using it.
do you mean that gold, silver or platinum don't react to oxygen?
I wish i could make jokes as quippy as these smart poos
dat Shylock quote at the beginning >
(swoons at the Merchant of Venice quote)
What are lips made of? Like what makes lips different from the rest of your skin.
health.howstuffworks.com/skin-care/lip-care/health/lips-different-skin.htm
"Miss Piggy keeps falling off my leg."
Ooh, sounds kinky, can I watch?
Is the Paleo diet healthy?
No, it works well for weight loss initially because carbohydrates are our main source of energy. Take those away, and the body is forced to use fat stores for energy. But because our bodies are meant to run on carbohydrates, carbohydrate fasting can lead to serious health problems down the road. A reduction in carbohydrate consumption is good, but not complete removal from the diet.
Rayleigh Scattering...
That reminds me Aldnoah Zero's back on...better go watch that
This led me to a question: why are the soles of the feet and hands always paler than the rest of the skin?
Question: Why is it so funny to watch things get ragdoll-ized (go from normal to flippity-floppity) in video games?
0:42 lost it! HAHAHAHAHA!!!!
I think those guys in star trek with the antennas and the swedish haircuts have blue blood.
Horseshoe crabs have blue blood. Instead of hemoglobin in their blood, they use hemocyanin.
*****
yes, they use copper in stead of iron. It's very ineffective, so it's a bit weird.
***** That's exactly what he said.
***** Copper is the key element in hemocyanin, just as iron is the key element in hemoglobin.
Andorians
Why the NFL organization commitee of the East-West All-Star Shrine Game dont reveal the weigh-ins and measurements results of the players?
Where does the term jaywalking come from?
Is blood black in the moon light?
I'm not saying that blood is blue, I'm just curious as to why the blood in my veins looks blue but the blood in my face when I blush is red.
Pork chop party fund!!! 😃
I had a nose bleed into a sink of water and it was purple/blue
You get stop it...... I'm gonna use that lol
So is the sky red?
The opportunity to mention the blue blood of a horseshoe crab was totally missed.
It's not "tallest" wavelength... it's longest. Tallest denotes amplitude, not wavelength.
Just thought I'd toss that out there.
Veins have always looked green to me, this is the first time I'm hearing about blue veins.
I have a question. How come there are more right hand writers than left? Is it a genetic thing?
Joshua277456
Cool... now to just get wolverine claws...
It's the hand you start using when you are young. No connection.
Maybe it's genetic? My guess is when back in the day churches were really strict and killed off left ganders thinking they praise the devil.. But that's just my guess
Why didn't you mention that some arthropods, crustaceans and mollusks have blue blood? That would have been bonus information, plus actually be the answer to the title of the video.
Yes. When you take a ton a blood and a ton of blue dye and mix it together, it might all turn blue.