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What is heavy water, and is it safe to drink? Heavy water, or deuterium oxide, has some pretty important scientific applications. But what would happen to your body if you actually drank it? Hosted by Hank Green.
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So the list of the most expensive waters would go like this:
1-Normal water
2-Heavy water
3-Super heavy water
4-Bottled tap water at a pop music festival
5-Water at the airport
Cool.
Cool.
Cool
Water at the airport is deadly.
Cool
I prefer light and diet water.
i prefer water-free, no-cage, free-range, biosynthetic water
Jose Herrera non gmo water
water zero is the best imo
I need my water to be organic, non-GMO, gluten-free, vegan, fat free, sugar-free
Plebs I get my water straight from the sahara dessert.
Chemistry taught me that beer is actually a solution,
Solution to what?
@@wmdkitty You're asking the wrong questions, uneducated, uncultured swine! Beer is a solution, period!
So did microbiology. John Snow found that the brewery workers mostly didn't get cholera because they drank beer, and the process of beer making killed chlolera
@@johnyoutuber9781 I think you mean “Beer is a solution, comma!”
BEER IS A SOLUTION IF YOU HAVE A PROBLEM OF LONGING TO DRINK BEER.
I'm a nutritionist and drank heavy water once in school for one of the experiments Hank briefly mentioned. Just one of the most expensive and awesome ways of measuring a person's total energy expenditure. Heavy water tasted, looked and felt exactly like regular water as far as I could tell.
And since heavy water often sits around for a long time after it is isolated, it is likely going to be very flat tasting, bordering on musty. Not the best cup of water you have ever drank. Though they may aerate it before giving it to humans to consume purely for the taste, though.
How exactly does it measure a person's total energy expenditure?? (Haven't finished the video yet 🤭
Deuterium Depleted Water is an official cancer treatment for pets
I just drink pure liquid oxygen for maximum chemical reaction speed
+Birb Unfortunately, that would likely freeze your tongue solid, and could even shatter it into pieces, if you happened to bite your numb frozen tongue by mistake. It might even turn you into a numbskull, if you happen to drink enough liquid oxygen ;-)
or your body would collapse under the enormous pressure needed to keep it liquid if you didn't want to freeze your body from the inside
Oxidize quicker
Birb 😂 😂 😂
Sounds legit
Cody's Lab actually bought and tasted heavy water.
It's slightly sweet.
he also made some himself in his early videos
+Tukukado
Yea but in the original video, he wasn't sure what the concentration was, or if the sweetness was due to lead contamination from the electrodes.
I highly doubt that pure D2O would taste sweet, that doesn't seem to make a lot of sense.
Go watch the videos if you don't believe it.
I believe that they reported it like that, I just don't believe that it comes from replacing protium with deuterium.
I do have D2O in my lab for NMR purposes and I'm tempted to try it myself but I'm not sure about contaminations plus my boss probably would not like it if I tried it...
Is heavy water actually more expensive that the bottled water at the Airport?
Is anything?
Depends, are your buying the heavy water in the airport?
Geppetto Collodi
You are assuming the water at the airport isn’t heavy water and that’s why it’s so expensive.
@@joshgellis9463 why would you just call someone that
8 bucks for a 10oz bottle of Deer Park is NOT okay.
I am heavy water guy.
This is my water.
*Shows d2o*
It costs $220 to drink just one bottle
WHO TOUCHED MY WATER!?
Since it's not good for the human body, what is it useful for?
So it's much more affordable than bottled water at a music festival? Good to know.
"Because you don't want to be a dead person. Me, however..."
Wow, got worried there for a second.
Would you swim slower in heavy water?
Kyco Presumably you would be more buoyant (as you would displace less water) and so potentially could encounter less drag. But then maybe you'd have increased drag from the water infront of you. But then you'd be able to get more thrust with each stroke/kick. I think you'd be faster as I think the total amount of water 'blocking' your path would have equal mass in both heavy and normal water, but the force you can apply is dependent on the area of your hand/arm/foot which doesn't change but what you're pushing against is more 'massive' propelling you forward more.
Kyco that seems complicated, it may make no difference.... Actually if we imagined a swimmer in oil they would presumably go slower then
A swimmer in oil isn't really comparable, since oil has a much higher viscosity than H2O or D2O. But you certainly would float much more easily! To clarify the above, you would displace the SAME amount of water by mass, meaning a smaller volume of water displacement would be required to keep you from sinking. A D2O swimming pool would be way cool!
Ah, good point. I didn't consider the difference in viscosity.
@@Robbythegod some oils are more or less viscous. I imagine sewing machine oil would be close to water, where something like heavy crude would be super viscous even if it is lighter weight than the water by 10-20% (I can't remember off hand).
"Including all the SUPER IMPORTANT REACTIONS that keep you NOT DEAD"
I love this =)
I saw a study several years ago that suggested that drinking the right amount of heavy water could help prevent cellular damage from radiation -- the heavy water in bonds in your body would absorb more energy without breaking down. But the "drink too much and you die" thing was also mentioned
I am a member of a structural biology lab and we work a lot with heavy water. My lab uses the deuterium in D2O (heavy water) to label proteins, put the proteins through a pepsin column (pepsin is an enzyme that chops up proteins), and then load the peptides onto the mass spectrometer. Using this method, we are able to learn very valuable information regarding protein conformation and protein dynamics. So yes, D2O is awesome! It is also extremly expensive...
Lokeshwar Bhenderu Yeah...no kidding. Official systems for D20 are expensive (I'm looking at you, D&D).
Bad geek/nerd joke about tabletop gaming based on the way you had to write things due to keyboard limitations. I shall show myself out.
AlphaWolf098 thanks man had a laugh
Pepsin isn't as good as Coken.
I prefer a good Root Beern anyway.
Yessss hydrogens deuterium exchange for binding fingerprinting
Cooool!
this sounds like a stoner question
and my suspicion is confirmed when I see the length of the video is 4:20
lol
he also acts and talks a bit more casual in this video, as if he were stoned.
DUDE WEED
Marha I mean, nothing is really too complex. Everyone knows H2O is water and adding extra neutrons just changes it. Pretty simple stuff.. not necessarily that he's stoned.
Pete Loss Not all stoners are complete idiots.
that plant had pot leaves.
Thank you for doing this one. I’ve spent hours trying to look up what would have really happened to the Penguin’s dehydrated guinea pigs in the Batman movie, but never got past “they would die.”
I enjoy the jokes/editing in this episode. You guys left in Hank laughing a bit, and it's great
Didn't Cody's Lab drink Heavy Water?
Ignat Remizov Yes he did
Yep. He said it tastes sweet.
Of course he did. Cody is the best!
He did. He said it tasted sweet. (th-cam.com/video/MXHVqId0MQc/w-d-xo.html)
In Cody we trust.
It'll cost a lot of money, that's what.
I haven't watched SciShow in a few weeks, but holy cow the writing in this episode is really good. It's the perfect combination of ad-lib and scripted, and it has great pace. I dunno what happened, but keep it up!
This is so fascinating. I never knew there was so much to consider when stitching up an injury!
Oh man, I remember Deuterium from O-game, that was a great space colonizing sim browser game from the early 2000's
I love Hanks new relaxed presenting style :)
I'm thirsty now.
I'm thirsty after reading this comment XD
Royal Carpet well...um..Water's good for body XD
I GOT SOME LEMONADE !!! made with yellow snow !!!
😂😂😂😂😂😂😂😂😃😆😆😆
@@ericolens3 Plenty of people with a GF or BF remain thirsty.
ahh!! dihydrogen monoxide!
I remember when I was a space pioneer around 15 years ago. I had to produce tritium by myself because I needed it for more energy so I could build more products and further expand my imperium. Now I'm retired. I had good times then!
You become so heavy that you start to sink into the ground.
I mean, if this was neutronium then maybe.
if neutronium existed it would just immediately decay. i don't know what it has to do with sinking into the ground
I have actually wondered this before. Thanks!
This ques was in my mind for a long time.
Dankon Scishow!
"cause you dont want to be a dead person" 2:57
I'm sure many of us would disagree on that statement.
ejjy
I asked my chemistry professor exactly the same question when we discussed isotopes in Chem 101 in college. Two isotopes of the same element are exactly the same in all respects except they have different rates of reaction. Different processes in the human body depend on those rates of reaction. So over time, heavy water can kill you, by upsetting those processes.
@@eastindiaVno. Isotopes do not vary in the amount of electrons they contain. It's just the neutrons that vary. They don't even change the way the element reacts, just it's rate of reaction
@M1551NGN0 So is it safe to say 'water' could be (one of the) major causes of our bodies breaking down. All because we don't, consistently, have the purest form?
Nice show. Thanks.
Thanks for your site
What about water containing Oxygen-17 or Oxygen-18? Even better of a question: what about water made out of Deuterium/Tritium *AND* Oxygen-18?
If you had Tritium and Oxygen 18 ice, would it sink in regular water? Also, how high would the boiling point, be?
Hey guys, would you consider doing a video on why glass from some old camera lenses have thorium mixed in with them? Thoriated lenses aren't dangerous, but they would have been if you kept one on your night stand each night, since thorium emits alpha beta and gamma particles.
I saw this Cody's Lab episode so long ago, but I will still watch this because it is Sci-Show.
Brilliant also have an app and it is really great. I've had it installed for months as it peeked my interest, but I haven't had time to truly dig into it yet, however I can say that it's really great so far.
I have heard people describe the taste of heavy water as tasting like normal water, but much sweeter. I have never tasted it myself, but if this is true, I would have really liked to have heard an explanation as to why it tastes sweet. It would have been very interesting to hear a scientific explanation for it.
th-cam.com/video/dS5TmfOwBnw/w-d-xo.html I happened to be watching this video earlier about artificial sweeteners. Around 16:50 is where Hank brings up that romans used to use lead as a sweetener for their wine, they called it Sapa. Since lead is a heavy metal I’m sure it has a similar effect, he even went on to suggest that perhaps that’s why many kids would chew on lead paint chips because of their presumably sweet taste.
I'VE ALWAYS WANTED TO KNOW THIS!!
Nathaniel Darkwater if that’s sarcasm, just get off the page.
Man, i love this channel
..."keeps you not dead"..That was the bestest scientific jargon...really..thanks :)
"You dont wanna be a dead person."
YOU DONT KNOW MY LIFE SCISHOW
At 1:25 He treats us like we're dumb
I LOVE IT!
the best type of teacher assumes you start with no knowledge on the subject!!
Alyssa M true
I've wondered this question for years
Interesting. Thanks for another cool video :)
Here is a question for you SciShow... Car Seats have an expiration. Why? I have done my research and can't find data that backs up any of the claims. I understand if it had been in a wreck or has outdated safety standards, but plastic and straps don't expire in 6 years.
lhsalmond, I assume you talk about car seats for child.
Plastic is not an eternal material. After a while, it dries up (or other physical effect) and becomes less flexible and more brittle. Simple old LEGO bricks do not have the same feeling after 20 years, especially compared to new ones.
The plastic of a car seat is bulkier, so you will probably not feel any difference after a couple of years. However, the dry up has weakened enough the plastic so that a full impact of an accident will brake it.
Last time I heard about it, the expiration date was 10 years in Canada. I am surprise it is only 6 years in some places.
Ghyslain Abel I understand that plastic could get brittle over time, but those kind of things happen over decades. And the manufacturers claim that sitting in a box or sitting in the sun dont affect that. There are no images online of wrecked "expired" carseats that have been in accidents, and there arent any tests that compare equivalent carseats that were made 6 years apart. I work in the plastics industry, and this smells really fishy. I agree safety standards may improve over a decade, which makes switching make sense, but I personally think it is just there to compel scared moms to give them more money and kill any litigation on seats over 6 years old.
lhsalmond, I understand your point. You are probably right, manufacturers put too short expiration date to do more sales.
By the way, what about temperature? In winter it can be as cold as -30 outside, and each time the car is used the temperature goes up to 10 with the heating. In the summer, the inside of a car goes up to 45, then it is cooled down to 25 with air conditioning. They are both temperature swings that plastic does not usually have inside a house or inside a factory.
I am just thinking about outside playground. Plastic slides, after a couple of years, lose their colour and have some surface cracks. Since the biggest impact the can receive is a child jumping on it, it is not dangerous. A car seat must resist to a accident at 100 km/h (300 km/h in Germany).
Money. Its the same thing with prescription drugs, do you really think morphine goes bad after 12 months? Every chemical has a half life.
You think child car seats expiring is bad, the seat belts used in race cars expire after (usually, depending on sanctioning body) 3-5 years and a car with expired belts won’t be allowed to compete. In both cases, seats and belts, this has very very little to do with the actual hardware and everything to do with insurance liability. No company wants to be on the hook when little Johnny gets killed in a 20 year old car seat, so the law allows a limitation on the liability after a certain number of years. That’s what has expired: the manufacturer’s liability.
The questions I have after this video and another one I recently watched is does heavy water freeze like normal water? Does it then make heavy ice and heavy ice 2 etc.
Yes. The cubes will sink in normal water. There's a TH-cam short about it. Wish I could remember the name of the content creator.
Super important reactions that keep you not dead. I'm 32 but those are the things that trigger me to like your videos! Keep it up please!
Also this is from 2020 and I see I'm about 3 years behind on videos now, I did caught up a bit.
I LOVE SCI-SHOW!!!
Umm Cody's lab
Only difference is that Cody also did oxygen-18 heavy water and SciShow explored the toxicity of deuterium oxide (which itself is an open question).
What about Cody's lab? You have an incomplete sentence.
LuisTheBubble What is Cody's lab
search on youtube, he has a video where he drinks some heavy water, you will like it
Billy big bollocks
I think it would be great if you made an episode on how Slide Rules work. After all they helped with some of the greatest construction projects world wide at the time an even helped check the work of NASA. I think it would make for an excellent episode.
Wow Brilliant is really nice! I was looking for a platform like that, a Duolingo for science!
Hank, you are legend!!
Hello, SciShow! Do you think you could make a video explaining the current knowledge of cerebral aneurysms? I had one rupture at 19 and after learning so much about them, I would love for a bigger audience to learn of them!
I think they only take questions from patrons.
If you really want it answered then consider becoming a patron on patreon! Link in the description.
Solis its a copypasta
I have no idea what you're talking about. I tried searching for Scishow or brain aneurysm copypastas but got nothing. The only Scishow copypasta I know of is "Why is there _________ around my anus?"
Wow I didn’t even know there is something like heavy water 😳
Steffi yeah cuz u dumb...
Steffi then you are a moron
@@Stern98257 you're mean
@@madscientistshusta as are you
I recommend trying to figure out a way to put the brilliant/scishow link earlier in your speech.
I was about half-way through signing up when I realised that I had just google'd the website rather than using the link connected to Scishow. (I would hope you get whatever benefits you can)
If I had signed up through Facebook, I probably would've already made an account before you mentioned the link
Great Scott!
That's heavy!
Holy cow, this was something they had Hogan's Heros!
I remember that episode. Klink and Schultz drank quite a bit of that barrel!
(Actually, that explains a lot! 😆)
Best one is tritium oxide!
Nothing like a lovely glass of ice cold water on a warm summer's day. Cool video.
The length of the video.
NICE
Can there be water made from a non-"normal" isotope of oxygen? Like, if it was made from two "normal" hydrogen atoms that have no neutrons, and an oxygen atom that has nine neutrons instead of eight?
Oxygen-18 (10 neutrons) would be about 5 times more likely for that. In reality, you probably do have some water with non Oxygen-16 oxygen as well as some D2O.
Codys Lab drank it
KingsleyIII yes
I don't know about you it woukd probably have the same effect, given how everything organic has hydrogen in them and a crapton of them also have a bunch of oxygen too.
David as far as I know, Cody's lab drank only D2O
If heavy water slows reactions down a bit, what if you compensated by making your body temperature higher?
You risk denaturing your proteins in your metabolic processes if you raise your temperature plus, your body needs catalysts and speed boosts for you reaction otherwise you risk dying.
@@NoirMC187so how about heavy water mixed with some of those catalysts and speed boosts?
Unfortunately i have come to dislike solving problems unless they are VR games related. But i enjoy just being told things so thanks so much Scishow. wont be trying Brilliant out but will keep watching :D
This is a very interesting topic. Thanks SciShow.
Well you probably all know that water you drink is H2O that stands for 2 atoms of hydrogen and 1 atom of oxygen. Some of you maybe know about isotopes and that every element in the periodic table has more then 2 isotopes. Isotopes are essentially atoms with the same number of protons and electrons but different number of neutrons in its core. Hydrogen has 3 isotopes as said in the video but nobody mentioned that oxygen has 16 isotopes from which 3 are stable and found in nature. Normal water hound on Earth is made from [1]H and [16] O but theoretically in the different conditions like high pressure water made of [3] H and [28] O would be possible. That would be the heaviest water possible. Also there are 96 different water molecules possible to exist. Also an interesting topic. Would the water form different planets be usable for humans if it is made from different percentage of water molecules from mixture present on Earth?
*cough* codys lab *cough*
What about it? Need a cough drop?
Note to self, don't drink too much heavy water.
Deuterium in low concentrations, for example above 140 ppm also has a deleterious effect on mitochondria through damage to proton pumps in the electron transfer mechanisms that produce ATP for cellular energy.This damage is cumulative over many years.
Examples include:
All Vegetable oils btw 250 and 300 ppm.
Nnn Alpine sources of water 140+ ppm depending on source.
250 to 300 ppm is very high. No wonder why vegetable oils make people sick.
I feel like a super, super high end bar could totally sell drinks with D2O ice cubes for a ton of money just for the silly novelty of the ice cube sinking
49% of comments: A weight related joke
50% of comments: Cody's Lab
2% of comments: Other
That adds up to 101 dude
@@neilisbored2177 Which is exactly the temperature at which Deuterium boils!
Also, maybe there are some comments doing weight related jokes about Cody's Lab or so.
Codys Lab already drank some.. so im gonna guess .. yes you can
Video length, niiiiiice.
The thing I learned from this vid: The english pronounciation of tritium (until today I would have pronounced it "tricium").
Worth it.
If it slows chemical reactions down, would it be more effective at stopping fires than regular old h2o?
water stops fire by mechanical, not chemical means. It cuts the supply of oxigen and cools off the surfaces preventing it from burning again.
@@nashooo5903 but water is h2o right ?
So it has oxygen in it
It doesn't work like that. What you need for a fire is an oxidising agent, the most common being O2, but not every substance containing oxygen is an oxidizer. That's why you can't breath water either.
@@kevinlusdanar8316 Making a fire needs all of the three rules to maintain one. Temperature, Fuel and Oxygen... taking any of these away will cause the fire to extinguish. So oxygen in water doesnt make the fire any stronger if temperature is being lowered anyway.
@@kevinlusdanar8316 Applying heat to water does not break the bond between hydrogen and oxygen. The oxygen stays with the hydrogen and so does not bond to the fuel source. That's why water does not burn.
Just ask Cody
Cody on Cody’s ab channel purified heavy water and then drank it. Well worth watching, Periodic Videos channel has a video on Heavy Water.
First I want to say Thanks for doing this video I love your work.
So when I was given contrast for a scan they said it contained beta particles but that the half life of the isotope was not the kind that would result in long term damage. Basically I would cause some minor damage up front but that it would stop causing damage within hours. It did however make me really sick to my stomach, a semi regular biological response according to the doctor. Turns out I was not suffering from a gut bug turns out some one poisoned me with some sort of film development chemical. No ideal how or why, but they said the levels were way too high to be an accidental exposure. I spend 4 days in the hospital. But survived. Tritium is bad news from what I have been hearing from labs. It's fantastic as a paint and for certain applications but as a water it's just nasty. Well aside from reactor use. Though I am hoping for a LFTR Type reactor with desolved Thorium in Molten Flouride salt reactors.
Why does Hank's shirt look like a dirty wet wipe?
I can’t unsee that😂😂😂
Thee DoubleD why does this comment look like an erb lyric
Thee DoubleD Why did you do this to me?
Wow, now I can't unsee that.
What do you mean look like.
What about heavy-oxygen water? That is, water with oxygen-17 or oxygen-18? Would that have any effect on your biology?
How about doubly-labeled water which has deuterium and o-18?
ImagineBaggins Pretty sure O-17 and O-18 are radioactive, but don't quote me on it.
@ImagineBaggins: I imagine it would have significantly less effect than switching the hydrogens for deuterium, since the change as a proportion of total nuclear mass is a great deal less (increasing by 1/16 to 1/8, compared to a factor of two), but that's conjecture.
@ElectricPyroclast: no, they're stable; oxygen-16, -17, and -18 are the three stable isotopes.
I would like to know this as well.
Oxygen-18 is not radioactive
My mistake, thanks for correcting me.
Hank. Can you give us an update on the UK Fusion Reactor and how it works? if I recall correctly I think it's using deuterium as a fuel source?
ALL the super important reaction that keep you not dead, words to live by
Not a lot unless you drink a lot.
Now let me ask ya this. What's the IQ of smart water?
It's called Smart Water because it takes intelligence away fro people, so they'll pay an extra dollar for it compared to generic.
@Phục Đạt Đức Be careful not to cut yourself on that edge :D
Not very high, they can't even get out of the bottle
2
I WAS JUST WONDERING THIS QUESTION A WEEK AGO!!
...and then I spent the rest of the week wondering why the heck such an odd and specific question came into my mind...
Nilered already did try it, it was kinda sweet he told to the camera
DOES IT TASTE DIFFERENT??
Water is tasteless. The taste in water comes from the minerals (mainly the amount of sodium) in it.
Tyler Harris apparently it tastes slightly sweet
it taste sweet (check out Cody's Lab channel)
Dylan Vellut
Weird, since it’s chemically similar to normal water, so it should interact with our taste receptors in the exact same way as normal water.
Peter Knutsen first our senses are not exactly the same for everyone (like for urine and asparagus). I'm into chemistry but the way our taste buds work is completly unknown to me.
I would just assume D2O tickle the sweetness receptor the right way to make us feel that, as well as pepperine and carvone
i only watch SciShow when hes hosting it... the others annoy me. He always has much more enthusiasm in his delivery.
Huh. Fascinating!
I bought d2O for my inverter just now without knowing it's name. I just called it inverter water at the shop and now TH-cam recommends me this.
What happens when you eat glass?
It depends on how jagged the glass is. Eating smooth glass beads probably won't hurt you. Eating jagged glass is not so safe.
CONCLUSION: JUST DON'T DO IT
just eat sand instead, it'll have the same chemical properties without you know, cutting you.
Glass powder? Probably not much (you may as well be eating fine sand).
Glass shards? Your mouth (among other things) will get sliced.
Either way, glass isn't digestible, so, you know, just don't eat glass.
You poop glass
Soo is the video game Heavy Rain actually referring to Deuterium!?
New thing to learn
4:20 is the length nice
So you're saying heavy water is a weight loss drug?
The only person who clicked to find out what the hell heavy water is? mkay
Made in South Africa Keep learning
Heavy water is pretty well known as long as you know chemistry a little. Heavy water is just normal water with an extra neutron in the atom.
Made in South Africa let me be the smartass over here: "I ALREADY KNEW WHAT IT WAS!!!"
Made in South Africa I watched a documentary on heavy water but forgot it all
Made in South Africa its water that only makes the most brutal sounds
More chemistry and physics episodes, those are topics that will likely engross most viewers, dont know for certain though
cool video, would CDCl3 (deuterated chloroform) still have the same effect or would it's impact on the human body change? Afterall it's relative mass difference is smaller than the one for heavy water and as a result the reactivity of normal and deuterated chloroform shouldn't differ as muchas it does for water compared to heavy water
That's a good question. We've put some study in the realm of deuterated chemistry (en.wikipedia.org/wiki/Deuterated_drug) but we haven't figured everything out yet.
"I drank some of that water. . . . Will I die?"
"Only if Berlin finds out."
You gain weight?
KingsleyIII .... ya...
shh...
Hank is my favorite
@scishow: You forgot to mention, that your body has a proton-pump. If your body has only D2O, there is no more normal proton source, since all ionized heavy-hydrogen will be stuck to a neutron, making it too big to work in the proton-pump.