Also, don’t forget that pulling water from air isn’t free. There has to be a compressor inside that thing. It’ll draw a significant amount of power, make a continuous noise - like a fridge, and heat up your room a little bit - whether you like it or not. Additionally: if the air humidity in your room is below a certain level, it won’t be able to collect any water. In this “scientific” video he forgot about… science.
That's a lot of advertisement in my science video. Edit: as this generated a lot engagement, thank you for feeding my ego. Especially thanks for the insightful comments. Now for the less insightful: - crying: bros, stop projecting, - Sponsorblock: yes, but does not address the the core issue, - bro got to eat: sure, does it have to be by reading a marketoid script?; this is a channel that I get so much more, that's why I'm subscribed and posting within hours from the premiere, - unsubscribe: no. I'm giving some leeway that this might be a EOY thing, with having to work fast. And I'm being open to a video where the robomop is put on the “healing bench” and “X-Ray'd” (watch your eyes, the light will come up).
The action Labs is what I consider low IQ high impact. I don't think he's the smartest person on earth or even in the room when he's alone. But because he's interested and cares about it, he's way more effective than most people and what he does is important too.
@@tatianaes3354 not even, this is a terrible idea, not only is the sediment gonna build up in the tank and you're still eventually gonna have to clean that out, also the water is going to carry some crap with it as it evaporates and deposit that all over your room while potentially causing mold issues from the extra humidity.
Agreed. Unironically. He probably made bank, I enjoyed watching regardless, the company maybe sold a few humidifier/dehumidifier/rumbas. Literally how the world works... And we get fun free science-y videos to pass some time. Not sure why so many are wagging their fingers
@@publiconions6313 ... right, we all get that... but this kind of feedback is important if he doesn't want to alienate his audience in the process. This absolutely felt like a QVC spot.
What I need is a fleet of tiny robots that can crawl over every surface of my cluttered apartment to collect and compact dust into small pellets and then spit them out into a few piles that can be easily swept up. These floor vac robots are for people that actually keep their living spaces relatively neat, so the robot has little difficulty traveling over it. I need robots that can go anywhere, including the walls, ceilings, and over the carpets.
Fair, but the potential of the technology may have applications not yet appreciated. Portable water reclamation unit that sterilizes and mineralizes water in isolated places maybe? Does have to be a vacuum/cleaner. And say we advance to having our own power sources (or super cheap energy) then it could be more economical or water efficient. Just saying. It's a bit silly now, but how could this mature in other ways?
@@zoch9797 ... Maybe drinking water in remote location. That would make more sense ... Because drinking water = Saved life ... As opposed to installing this in a normal house that has normal running water.
Correct. This tech has been around for about 10 years or so now. If I remember correctly, it is being utilized and worked on in place such as the Middle East/Mediterranean.. Israel? Hopefully this tech can improve and possibly help in areas during times of drought. Take care :)
It is not working in situations where is no water in the air. So this technology won’t help to create drinking water in desert like areas. The obtained water also lacks minerals as it is pure water, so not that healthy.
@cupcake_toucher445 not much water and condensing - not freezing. And if done smart it should not be that much - the heat generated from condensing new water can be used to evaporate the dirty water.
I have a feeling this thing, although well thought out, is so complex, and has so many moving parts, and has subsystems that absolutely have to function correctly, is going to be a maintenance nightmare after about 3 months of use. I hope they've life cycle tested this thing thoroughly.
Pulling water from air isn’t free. There has to be a compressor inside that thing. It’ll draw a significant amount of power, make a continuous noise - like a fridge, and heat up your room a little bit - whether you like it or not. Additionally: if the air humidity in your room is below a certain level, it won’t be able to collect any water. In this “scientific” video he forgot about… science.
I use my dehumidifier to "generate" water in my basement for my laundry bucket and plants. I need to keep humidity lower in summer and might as well put it to use
1:51 That, my friend, is the reason I watch this channel. Instead of just spewing facts at us and telling us that's the truth, and demonstrate an experiment and make us think. We rediscover the same thing that was discovered centuries ago, and that makes the learning experience so much better.
The syringe plunger actually did move out by roughly 1 mm during the pre-boiling heating phase. Water does expand when heated before boiling (and the syringe may have even had a bubble that he couldn't get rid of), so that's not surprising.
So that vacuum looks... over engineered, fragile and very energy hungry. A toy for people that think "saving water" does any good for the environment rather then what they are actually doing: harming it.
This stoopid thing costs 1900. Just to avoid filling the tank every one in a while ? Do you really need all that technology and energy just to fill a tank with 2 liters of water in a home that 100% has running water ? How much energy does it take to condensate that much water from the air ? In a science video, you don't think that would have been interesting ? And how much more CO2 is used because of it just to avoid the huge hassle of taking the tank to your sink to fill it ? This video a perfect example to tech bros thinking they are so smart with their fancy degrees (every video we are reminded bro has a chem. eng. degree) to invent stuff nobody needs and overlooking so many things, basically fixing problems that don't exist.
I have a Roomba combo vacuum and mop and it doesn't do this. I replace my tank with cleaning solution like once every 3 months. It's so frustrating how often I have to fill it, it feels like I have no time for anything else in my life. I stay awake at night most nights just in utter fear of the next moment I'll have to refill it and worrying if there's any more cleaning solution in the bottle. Shit... I forgot it this time, pray for me! /s
For that money you could have a plumber hook it up to the water line, for a little extra he might even be able to connect it to the drainage system as well. Now, you use less energy and you never ever have to empty or fill the damn thing.
I hadn't even clocked that it cose $1500+ and this video plays like a bad infomercial with some token physics wrapped around it. I feel like they misplayed their target audience by putting it on this channel since a lot of people here will immediately key on how inefficient that water recycling cycle must be and he doesn't even mention that this "moisture farming" is going to be even less efficient in dry places like Tatooine.
Condensing water would use an insane amount of energy (I think that thermodynamically, to condense one liter, your heat pump needs to extract as much energy as it would take to boil one liter dry). Compared to throwing away the solid dirt, refilling a water tank sounds like a much nicer chore, so they've just eliminated the easy part.
It’s a tiny air conditioner(except it doesn’t actually cool the air in a confined space because the heat removed just goes back into the area it was taken from)
The change in volume with temperature is demonstrated with tides and the use of the Plimsol Line on boats. The cold north atlantic ocean water is much colder than the Caribbean waters and the volume of water increases with this heat. The density of the water also reduces with this temperature increase....thus the Plimsol Line existing. The 'cold' water wasnt really cold, if you do it with refrigerated water from the fridge, then microwave it, you'll see a change in the volume.
That's a minor thing. The extra pressure only delays boiling by a small amount. What is happening is like this. Water has a "vapor pressure" that increases as it is heated. The atmosphere is pressing on the plunger at 15 psi. Until the water reaches 100 C, it's vapor pressure is < 15 psi, so the plunger doesn't move. After 100 C, the vapor pressure is greater than 15 psi, and pushed the plunger out.
Wouldn't that second graph actually have at least a little bit of a curve on the end there, James, just like a "square wave" can't actually magically be _perfectly_ instantaneous?
@@wolfsmaul-ger8318: Right, but it still shot up with a straight line, almost perfectly straight up, where I thought there would still be at least a little curve. But... maybe it's good enough for now.
Nope, no curve. Like Ben was saying, the liquid will increase in temperature until it reaches the boiling point, it'll remain the same temperature as heat energy going into vaporizing it instead of raising the temperature, and only when it's all vapor will the temperature start to rise again. So even at the slightest fraction of a degree below the boiling point, it'll be 100% liquid, and at the slightest fraction above the boiling point, it'll be 100% vapor. That's in theory anyway. In real life, the plunger will resist moving out exerting a bit of force on the liquid and raising the boiling point ever so slightly. This force won't be perfectly consistent as the plunger slides down the tube, so the graph won't be _perfectly_ vertical there for that and probably other reasons.
You went down a few notches in the trust dept. You could have at least mentioned the high energy use and told us to make our own conclusions. Not unsubscribing yet but might after next time.
20 ชั่วโมงที่ผ่านมา +2
The energy use must be obvious to anyone watching this channel. Would be nice to have the exact number though, so we can compute if the energy costs less than what we make in the time it takes to refill/empty a tank in a non-dehydrating robot cleaner.
So I guess for this gizmo to work correctly one would better have the AC off, or else little to no water will be collected … On the subject of water collection, I’d ask you to give the 1965 film Flight Of The Phoenix a watch and tell us how with heat this time, one is able to collect water from water poor environments 😊. The video does also explain why car radiator caps are designed to let steam go at certain pressure, over which water in the system would all turn to steam
I could not find an unbiased review of this robot. Also, I can't find anywhere that mentions whether it uses compressor or peltier technology for condensation. Either way, it's a lot of unnecessary extra complexity and power use.
although not unbiased since they gave it to me for free, I actually really like it. You don't hear a compressor kick on. But there is a fan that you hear drawing in the air until the tank is full. You can turn it on quiet mode so you don't hear the fan if you want. I have another good mopping robot and it actually is kind of annoying how often I am emptying and filling it. But with this one it has required zero intervention since I've had it (several months). Also I was surprised it works even in my low humidity (less than 30%).
@@davidkrygier511 That's not really very useful information; unlike a light bulb that draws the same amount of power no matter how long it's turned on, a cooling circuit switches on and off. With an 850W rating it's probably a compressor, and that's how much (i.e. the maximum) power it uses on startup, which is only a few seconds. The constant draw is significantly lower, and of course, once the system reaches its desired temperature, or once it's collected all the water it needs, the only power it will draw is what it needs to charge the battery or keep its monitor circuit running. It could also use Peltier modules, as I wrote above, which are significantly less efficient, although 850W, if accurate, seems on the high side for Peltier modules in such a small enclosure, even with forced air. OTOH, since @TheActionLab wrote that he couldn't hear a compressor, it could very well be Peltier.
Thank you so much for this video setting the record straight on how humidity works! Many incorrectly say that the air can "hold" only so much water at a given temperature when in reality the same amount of water vapor would exist with no air at all.
As a physiotherapist I suggest cleaning your house with a classic vacuum cleaner, doing a little bit of exercise in the process. The only useful advance I’ve seen in the last decades was wireless cleaners, is way more comfortable and safe to clean without wires messing around
The 3i S10 Ultra takes the moisture from the air and condenses it into water. That is good for re-using it to mop the floor, but it will also dry out the air, which isn't really good for your well-being. It will dry out the mucous membrane which in turn can raise the risk of infections. It also can aid or even cause respiratory illnesses like coughing or asthma. It will also dry out the skin which can cause skin problems like itching or alligatoring/shingling. So, while this is technically a nice thing, it isn't really healthy for humans (and animals?). I have a device that enriches the room with humidity, which should be between 40% and 60% in order to create a healthy indoor environment.
This is actually a really cool product. I get that you can just get tap water, but this is also basically distilled water without any minerals which is better for cleaning and it does get rid of the chore. If you have solar, the electricity is basically negligible. All the tech and design solutions in it are actually really cool from an engineering standpoint.
What do you mean it boils it off so you never have to empty it. All that gross shit just collects at the bottom. And will still need to be cleaned out.
Yeah, that was my first question. Like, sure, you don't have to deal with dirty water but the stuff it's picking up still has to go somewhere. The second was that the 'take water from air to refill' will depend on humidity for speed and efficiency. if there isn't water in the air, it's not going to be able to take any.
he explained in the video that the machine filters all the debris while boiling also since it is recycling the water there probably wont be much water needing to be refilled so the humidity might not cause a problem
The cyring example is not correct tho. It does move slightly with the vapor pressure at different temperatures. Piston should move around 3% of air volume in the cyringe at 60 degrees
So I have insight on that mopping robot: as someone who has protible air conditioning that can double has dehumidifiers, I can tell you that given the right circumstances, you can pull 10+ GALLONS of water from the air DAILY. that’s with a strongly powered system. A smaller (possibly more passive) one could definitely make a gallon per day to mop the floor. Easily. Even in winter I bet there’s enough humidity to use water vapor for mopping floors.
Okay, at 1:51 right now and after giving it a think, you have to specify the pressure over the water. If we're at atmospheric pressure, then none of the water will vaporize until we reach the boiling point because the vapor pressure has to be high enough to counteract the atmosphere and the weight of the piston. If we're in a vacuum (with a piston of negligible weight) then there would be some vapor and it would continue to grow indefinitely at any (reasonable) temperature, since there's no pressure and it can keep evaporating (as long as you're supplying heat). So in the first case, the graph should just be flat until the boiling point.
I run a dehumidifier in my living room, and it pulls 5 gallons of water every 3-6 days. I end up dumping the water for the plants 1-2x a week. This sounds like a great way to put that water to good use. The major downsides are the expense (~500watts of power draw), it’s loud while the heat pump is running, and it heats the room fairly appreciably. Wonder if the robot mop is the same.
An industrial scale process is almost always more efficient than individual scales. Just replacing the water by hand (making use of the massive sewage filtration system) every once in a while is much more energy efficient than boiling and condensing water on site.
You didn't mention: the friction in the syringe plunger, the change in pressure within the syringe, the relative humidity of the air. But I did skip the giant advertisement at the end.
Empty your mind, be formless, shapeless - like water. Now you put water in a cup, it becomes the cup; You put water into a bottle it becomes the bottle; You put it in a teapot it becomes the teapot. Now water can flow or it can crash. Be water, my friend.🙃 Water is a really interesting substance! But advertises not so...
"evaporation is not effected by pressure" 5:30 evaporation is very much effected by pressure, what do you think the vacuum does? It reduces vapour pressure, and reduces the required kenetic energy that molecules/atoms need to break away from the liquid and evaporate. This statement is just wrong and misleading. Under high pressure it requires more kenetic energy for molecules to evaporate, and under low pressure it requires less kenetic energy Standard Ideal Gas law applies.
He's right. The rate of evaporation is largely independent of pressure. But the external pressure obviously matters to determine the point at which the partial pressure of the water vapor is equal to the pressure trying to collapse the bubbles in the water.
Pressure does not reduce the vapor pressure. The vapor pressure is not dependent on pressure. This is the equation for vapor pressure ln(P) = -(ΔHv / R) * (1 / T) + C. It is only dependent on temperature. You are confusing boiling and evaporation. That is what this video is trying to clarify. A lot of people get confused on this point. There is the same amount of water in the headspace above water at the same temperature in a vacuum right at its vapor pressure, or at ten atmospheres.
And no under high pressure it does NOT require more KE for a molecule to evaporate. The KE of average molecules in a gas is entirely a function of temperature and the energy required to evaporate is fixed by the enthalpy of vaporization. If pressure mattered you couldn't compute that. The only place pressure enters into the picture is in determining the temperature at which the partial pressure of the vapor constitutes boiling and thus indirectly only the average energy.
What he meant by "evaporation isn't affected by pressure" was that the equilibrium water vapor partial pressure that evaporation is trying to reach before stopping is determined only by the temperature inside the sealed system, not by the pressure of other (non-water) gases in the sealed system, which is generally a true statement. A vacuum pump doesn't change what the equilibrium vapor pressure should be, it just removes vapor such that the equilibrium vapor pressure is never reached, similar to how a non-sealed container of water would do in open dry air.
What a coincidence. i decided to pull out an old book of experiments from when i was a kid and started redoing these for fun. The first experiment is water evaporation. Less than 5 minutes ago i stated this and you upload this video. great stuff
I got a "lab" experiment for you.Find out of it's true that all paper money has a metallic strip in it that can be detected, then create a money detector, that can tell how much money is in a wallet without opening it. Imagine if everyone knew how much cash you had... lol
Damn, we've got all hardwood floors and a Husky that blows her coat twice a year, but I'll just pick it up at the pawnshop when some crackheads need cash and have keys to the mother-in-law's house. Uh, not that we know anything about that, Mom. Love you!
I cringe at the energy waste to condense and evaporate water just so that you don't have to refill and empty a bucket from time to time. That idea just seems completely insane.
Seems so odd that after robot vacuums being around for so long they still haven't found one that can conquer its true nemesis: stairs. I'm never going to get one if I still need a regular vacuum even if I were to spend all of the effort of occasionally moving around which floor the robot is on.
It's clever but it's basically a dehumidifier and a robot vac combined with an app. I'm not knocking it but its a variation on a theme rather than something new.
Did you take account of the friction from the plunger seal in the syringe? I bet the result would be at least a little different if a fictional frictionless plunger were used.
Can someone living off grid drink water from a dehumidifier? Or does the water get contaminated by stuff on the coils or other parts of the dehumidifier?
I mean, I would imagine so if the components were sterile. My dehumidifier water always seemed clear and odor free. I never tasted it or analyzed it for bacteria though.
Huh, that mop is kind of cool. I've had a dehumidifier running for a while and it's shocking how much water it pulls out of the air. I've been thinking that there has to be some interesting things that could be done with that water rather than me dumping it down the drain every couple weeks.
So you have to spend energy to condense and boil the water, then in the summer use even more energy to transport that waste heat outside with your AC. Sounds like a lot of energy. How often does the compressor need to run? I can't find any specs on the power consumption.
If you boil water in closed compartment to 100 Celsius water is still in liquid state but if you open relief valve it becomes steam. In petrochemical industry or plastic industry relief valves are adjusted to that scenario if not tanker or reactor will rapture.
For condensation I was used to a different model, which relies on the maximum amount of water which air can contain. When you suddenly cool air down like with your metal, then the amount of water the air can hold decreases, and all excess water turns liquid. (Saturation vapor pressure decreases)
yes but air doesn't "hold" water. It doesn't matter what is above the water. The same amount of water vapor will be present at a given temperature. Most people refer to air "holding" water, but it isn't correct, its just a convenient way to say it.
I kinda expected the bloody thing would cost $2000. Everything technologically advanced is for the WEALTHY. I mean... who--other than the 1%--is going to do that? The other 99% of humans on the planet have to stick to cheap vacuums, even cheaper mops, and sometimes just simple RAGS and figure-eight motions with carbonated water! :D
If you were wondering, the robot vacuum costs $1900.
that's suprisingly cheap. I was expecting something like 6k
But it would replace the cost of a maid
@@coreyc47 Its not going to spray and clean your toilets and dust the entertainment center.
@@coreyc47 replacing the cost without replacing the maid ... not sure that's a good deal.
Also, don’t forget that pulling water from air isn’t free. There has to be a compressor inside that thing. It’ll draw a significant amount of power, make a continuous noise - like a fridge, and heat up your room a little bit - whether you like it or not. Additionally: if the air humidity in your room is below a certain level, it won’t be able to collect any water.
In this “scientific” video he forgot about… science.
"For my birthday I got a humidifier and a de-humidifier... I put them in the same room and let them fight it out.”... Steven Wright.
Except it's not really a fight. Just a way of transferring fluid "pipelessly" from one machine to another.
That's a lot of advertisement in my science video.
Edit: as this generated a lot engagement, thank you for feeding my ego. Especially thanks for the insightful comments.
Now for the less insightful:
- crying: bros, stop projecting,
- Sponsorblock: yes, but does not address the the core issue,
- bro got to eat: sure, does it have to be by reading a marketoid script?; this is a channel that I get so much more, that's why I'm subscribed and posting within hours from the premiere,
- unsubscribe: no.
I'm giving some leeway that this might be a EOY thing, with having to work fast. And I'm being open to a video where the robomop is put on the “healing bench” and “X-Ray'd” (watch your eyes, the light will come up).
Infomercial
The action Labs is what I consider low IQ high impact. I don't think he's the smartest person on earth or even in the room when he's alone. But because he's interested and cares about it, he's way more effective than most people and what he does is important too.
There's a science video in my advertisement!!
@@beginnereasy he has a PhD in chemical engineering
@wolfsmaul-ger8318 piled higher and deeper. You go to school because you Don't know what you're doing.
It's a dehumidifier, a humidifier, and a vacuum all coupled together.
The Vacuumseer! It mops your floor and provides clean drinking water at the same time!
sounds like it uses wayyyy too much energy
yeah, that's my question. How much energy cost am I trading for no water filling & less waste emptying? That thing be 'spensive too.
Was thinking the same.
I guess it is worth it because so much hassle is removed.
It will be perfect for use in space
@@tatianaes3354 not even, this is a terrible idea, not only is the sediment gonna build up in the tank and you're still eventually gonna have to clean that out, also the water is going to carry some crap with it as it evaporates and deposit that all over your room while potentially causing mold issues from the extra humidity.
Scientist by day, salesman by day. Hey, a man's got to eat and sleep!
Agreed. Unironically. He probably made bank, I enjoyed watching regardless, the company maybe sold a few humidifier/dehumidifier/rumbas. Literally how the world works... And we get fun free science-y videos to pass some time. Not sure why so many are wagging their fingers
wow this sounds way too much like an infomercial
Boo . Who cares.. dude's gotta pay the bills. He makes videos that you get to watch for free, soooo
@@publiconions6313 ... right, we all get that... but this kind of feedback is important if he doesn't want to alienate his audience in the process. This absolutely felt like a QVC spot.
Listing *just* the advantages without talking of the drawbacks is a definite red-flag.
What I need is a fleet of tiny robots that can crawl over every surface of my cluttered apartment to collect and compact dust into small pellets and then spit them out into a few piles that can be easily swept up. These floor vac robots are for people that actually keep their living spaces relatively neat, so the robot has little difficulty traveling over it. I need robots that can go anywhere, including the walls, ceilings, and over the carpets.
Just set up a big sushi belt that snakes around every surface of your apartment, hit the button and watch everything march out the window
Waiting for nano robot vacs
Why limit it to your living space? I need something that crawls over my body and does the same thing...
Ideally it would burrow underneath the clutter and suck up all the grime!
So it wastes electricity heating and cooling water ... Instead of just getting it from a tap 😂😂😂
Fair, but the potential of the technology may have applications not yet appreciated. Portable water reclamation unit that sterilizes and mineralizes water in isolated places maybe? Does have to be a vacuum/cleaner.
And say we advance to having our own power sources (or super cheap energy) then it could be more economical or water efficient.
Just saying. It's a bit silly now, but how could this mature in other ways?
@@zoch9797this science has been known for years. It's not maturing much now.
@@zoch9797 ... Maybe drinking water in remote location. That would make more sense ... Because drinking water = Saved life ...
As opposed to installing this in a normal house that has normal running water.
Correct. This tech has been around for about 10 years or so now. If I remember correctly, it is being utilized and worked on in place such as the Middle East/Mediterranean.. Israel? Hopefully this tech can improve and possibly help in areas during times of drought. Take care :)
It is not working in situations where is no water in the air. So this technology won’t help to create drinking water in desert like areas. The obtained water also lacks minerals as it is pure water, so not that healthy.
So… it’s a dehumidifier, humidifier, water vacuum/mop
How much extra energy does it use on collecting a boiling water, just for you to never have to change the water?
For real. I would bet money that it's 10 times cheaper just to get the water from a tap ... Than waste electricity this way
Heaps of energy, I'm sure. Though that amounts to
Fr bro how can he pay so much electricity cuz he is too lazy to refill water every month and clean dirt tank every week 🤦
@mikeissweet 1$? Boiling and freezing water everyday?
@cupcake_toucher445 not much water and condensing - not freezing.
And if done smart it should not be that much - the heat generated from condensing new water can be used to evaporate the dirty water.
2:30 If you've ever boiled milk while looking at your cell phone, you know what will happen instantly and unexpectedly.
Lol
most underrated comment
I have a feeling this thing, although well thought out, is so complex, and has so many moving parts, and has subsystems that absolutely have to function correctly, is going to be a maintenance nightmare after about 3 months of use. I hope they've life cycle tested this thing thoroughly.
It's some skymall nonsense for sure
Pulling water from air isn’t free. There has to be a compressor inside that thing. It’ll draw a significant amount of power, make a continuous noise - like a fridge, and heat up your room a little bit - whether you like it or not. Additionally: if the air humidity in your room is below a certain level, it won’t be able to collect any water.
In this “scientific” video he forgot about… science.
That robot is loud as hell. At night, it can sometimes wake you up.
Action you’ve been educating us for years… get your money bro
I use my dehumidifier to "generate" water in my basement for my laundry bucket and plants. I need to keep humidity lower in summer and might as well put it to use
Thank you for your service 🌱🌱
Note: Drying/evaporating 1 liter of water costs about 0.7 kWh.
It is better to dry outside if possible.
1:51 That, my friend, is the reason I watch this channel. Instead of just spewing facts at us and telling us that's the truth, and demonstrate an experiment and make us think. We rediscover the same thing that was discovered centuries ago, and that makes the learning experience so much better.
Lol, the last 3 minutes got auto-skipped.
The syringe plunger actually did move out by roughly 1 mm during the pre-boiling heating phase. Water does expand when heated before boiling (and the syringe may have even had a bubble that he couldn't get rid of), so that's not surprising.
So that vacuum looks... over engineered, fragile and very energy hungry. A toy for people that think "saving water" does any good for the environment rather then what they are actually doing: harming it.
This stoopid thing costs 1900. Just to avoid filling the tank every one in a while ? Do you really need all that technology and energy just to fill a tank with 2 liters of water in a home that 100% has running water ? How much energy does it take to condensate that much water from the air ? In a science video, you don't think that would have been interesting ? And how much more CO2 is used because of it just to avoid the huge hassle of taking the tank to your sink to fill it ?
This video a perfect example to tech bros thinking they are so smart with their fancy degrees (every video we are reminded bro has a chem. eng. degree) to invent stuff nobody needs and overlooking so many things, basically fixing problems that don't exist.
Cry about it
I have a Roomba combo vacuum and mop and it doesn't do this. I replace my tank with cleaning solution like once every 3 months. It's so frustrating how often I have to fill it, it feels like I have no time for anything else in my life. I stay awake at night most nights just in utter fear of the next moment I'll have to refill it and worrying if there's any more cleaning solution in the bottle. Shit... I forgot it this time, pray for me! /s
For that money you could have a plumber hook it up to the water line, for a little extra he might even be able to connect it to the drainage system as well. Now, you use less energy and you never ever have to empty or fill the damn thing.
Having 3 Xiaomi robot vacuum , now I NEED this.
I hadn't even clocked that it cose $1500+ and this video plays like a bad infomercial with some token physics wrapped around it.
I feel like they misplayed their target audience by putting it on this channel since a lot of people here will immediately key on how inefficient that water recycling cycle must be and he doesn't even mention that this "moisture farming" is going to be even less efficient in dry places like Tatooine.
And all that for ONLY a cool $1900! And $200 off, whoa!
The electricity usage to be constantly condensing and distilling water would seem to be an inefficiency.
Thats the very light duty floor droid. That might not fare well as the experiment clean up droid.
Condensing water would use an insane amount of energy (I think that thermodynamically, to condense one liter, your heat pump needs to extract as much energy as it would take to boil one liter dry). Compared to throwing away the solid dirt, refilling a water tank sounds like a much nicer chore, so they've just eliminated the easy part.
It’s a tiny air conditioner(except it doesn’t actually cool the air in a confined space because the heat removed just goes back into the area it was taken from)
The change in volume with temperature is demonstrated with tides and the use of the Plimsol Line on boats. The cold north atlantic ocean water is much colder than the Caribbean waters and the volume of water increases with this heat. The density of the water also reduces with this temperature increase....thus the Plimsol Line existing.
The 'cold' water wasnt really cold, if you do it with refrigerated water from the fridge, then microwave it, you'll see a change in the volume.
The science behind it is really cool. But, frankly, I don't have fancy mopping robot money.
The piston is sealed with rubber and its very hard to move, that's why it moves only when water is boiling
That's a minor thing. The extra pressure only delays boiling by a small amount.
What is happening is like this. Water has a "vapor pressure" that increases as it is heated. The atmosphere is pressing on the plunger at 15 psi. Until the water reaches 100 C, it's vapor pressure is < 15 psi, so the plunger doesn't move. After 100 C, the vapor pressure is greater than 15 psi, and pushed the plunger out.
"Green light technology"
So... reflection?
Seems like a lot of hoopla for a lot of energy waste.
Wouldn't that second graph actually have at least a little bit of a curve on the end there, James, just like a "square wave" can't actually magically be _perfectly_ instantaneous?
it is not perfectly straight up but it is also just supposed to be a vague graph
The horizontal axis is temperature, not time. The boiling isn't instantaneous, but the temperature stops increasing until it's all vapor.
@@wolfsmaul-ger8318: Right, but it still shot up with a straight line, almost perfectly straight up, where I thought there would still be at least a little curve. But... maybe it's good enough for now.
@@BenAlternate-zf9nr: I wasn't saying it was, right? It just seemed like that spike should have at least a little curve.
Nope, no curve. Like Ben was saying, the liquid will increase in temperature until it reaches the boiling point, it'll remain the same temperature as heat energy going into vaporizing it instead of raising the temperature, and only when it's all vapor will the temperature start to rise again. So even at the slightest fraction of a degree below the boiling point, it'll be 100% liquid, and at the slightest fraction above the boiling point, it'll be 100% vapor.
That's in theory anyway. In real life, the plunger will resist moving out exerting a bit of force on the liquid and raising the boiling point ever so slightly. This force won't be perfectly consistent as the plunger slides down the tube, so the graph won't be _perfectly_ vertical there for that and probably other reasons.
You went down a few notches in the trust dept. You could have at least mentioned the high energy use and told us to make our own conclusions. Not unsubscribing yet but might after next time.
The energy use must be obvious to anyone watching this channel. Would be nice to have the exact number though, so we can compute if the energy costs less than what we make in the time it takes to refill/empty a tank in a non-dehydrating robot cleaner.
So I guess for this gizmo to work correctly one would better have the AC off, or else little to no water will be collected …
On the subject of water collection, I’d ask you to give the 1965 film Flight Of The Phoenix a watch and tell us how with heat this time, one is able to collect water from water poor environments 😊.
The video does also explain why car radiator caps are designed to let steam go at certain pressure, over which water in the system would all turn to steam
I could not find an unbiased review of this robot. Also, I can't find anywhere that mentions whether it uses compressor or peltier technology for condensation. Either way, it's a lot of unnecessary extra complexity and power use.
although not unbiased since they gave it to me for free, I actually really like it. You don't hear a compressor kick on. But there is a fan that you hear drawing in the air until the tank is full. You can turn it on quiet mode so you don't hear the fan if you want. I have another good mopping robot and it actually is kind of annoying how often I am emptying and filling it. But with this one it has required zero intervention since I've had it (several months). Also I was surprised it works even in my low humidity (less than 30%).
@@TheActionLab How long does it need to run for that - how much power does it use there?
@@TheActionLab your a garbage channel that makes videos for companies
850watt according to the manual
@@davidkrygier511 That's not really very useful information; unlike a light bulb that draws the same amount of power no matter how long it's turned on, a cooling circuit switches on and off. With an 850W rating it's probably a compressor, and that's how much (i.e. the maximum) power it uses on startup, which is only a few seconds. The constant draw is significantly lower, and of course, once the system reaches its desired temperature, or once it's collected all the water it needs, the only power it will draw is what it needs to charge the battery or keep its monitor circuit running. It could also use Peltier modules, as I wrote above, which are significantly less efficient, although 850W, if accurate, seems on the high side for Peltier modules in such a small enclosure, even with forced air. OTOH, since @TheActionLab wrote that he couldn't hear a compressor, it could very well be Peltier.
❌ pipeless fluid transmsion
✅ wireless fluid transmission
Dont know why you find the sudden rise in volume surprising
"green light technology" lol
I mean it's technology, and it has a green light. I don't see a lie. ¯\_(ツ)_/¯
Thank you so much for this video setting the record straight on how humidity works! Many incorrectly say that the air can "hold" only so much water at a given temperature when in reality the same amount of water vapor would exist with no air at all.
As a physiotherapist I suggest cleaning your house with a classic vacuum cleaner, doing a little bit of exercise in the process.
The only useful advance I’ve seen in the last decades was wireless cleaners, is way more comfortable and safe to clean without wires messing around
The 3i S10 Ultra takes the moisture from the air and condenses it into water. That is good for re-using it to mop the floor, but it will also dry out the air, which isn't really good for your well-being. It will dry out the mucous membrane which in turn can raise the risk of infections. It also can aid or even cause respiratory illnesses like coughing or asthma. It will also dry out the skin which can cause skin problems like itching or alligatoring/shingling. So, while this is technically a nice thing, it isn't really healthy for humans (and animals?).
I have a device that enriches the room with humidity, which should be between 40% and 60% in order to create a healthy indoor environment.
This is actually a really cool product. I get that you can just get tap water, but this is also basically distilled water without any minerals which is better for cleaning and it does get rid of the chore. If you have solar, the electricity is basically negligible.
All the tech and design solutions in it are actually really cool from an engineering standpoint.
What do you mean it boils it off so you never have to empty it. All that gross shit just collects at the bottom. And will still need to be cleaned out.
Yeah, that was my first question. Like, sure, you don't have to deal with dirty water but the stuff it's picking up still has to go somewhere. The second was that the 'take water from air to refill' will depend on humidity for speed and efficiency. if there isn't water in the air, it's not going to be able to take any.
Watch again from 07:22
Video: "... but you will need to clean it every 6 months"
Patience... what a thing
It was explained from @7:15
he explained in the video that the machine filters all the debris while boiling
also since it is recycling the water there probably wont be much water needing to be refilled so the humidity might not cause a problem
The cyring example is not correct tho. It does move slightly with the vapor pressure at different temperatures. Piston should move around 3% of air volume in the cyringe at 60 degrees
Are you talking about dissolved air
So I have insight on that mopping robot: as someone who has protible air conditioning that can double has dehumidifiers, I can tell you that given the right circumstances, you can pull 10+ GALLONS of water from the air DAILY. that’s with a strongly powered system. A smaller (possibly more passive) one could definitely make a gallon per day to mop the floor. Easily. Even in winter I bet there’s enough humidity to use water vapor for mopping floors.
If you leave it long enough, all the water will disappear, so what's the reason for that? You lose the high energy water and it still happens.
Okay, at 1:51 right now and after giving it a think, you have to specify the pressure over the water. If we're at atmospheric pressure, then none of the water will vaporize until we reach the boiling point because the vapor pressure has to be high enough to counteract the atmosphere and the weight of the piston. If we're in a vacuum (with a piston of negligible weight) then there would be some vapor and it would continue to grow indefinitely at any (reasonable) temperature, since there's no pressure and it can keep evaporating (as long as you're supplying heat). So in the first case, the graph should just be flat until the boiling point.
I run a dehumidifier in my living room, and it pulls 5 gallons of water every 3-6 days. I end up dumping the water for the plants 1-2x a week. This sounds like a great way to put that water to good use.
The major downsides are the expense (~500watts of power draw), it’s loud while the heat pump is running, and it heats the room fairly appreciably. Wonder if the robot mop is the same.
So how do I build a water wifi?
An industrial scale process is almost always more efficient than individual scales. Just replacing the water by hand (making use of the massive sewage filtration system) every once in a while is much more energy efficient than boiling and condensing water on site.
Someone just need to design a dishwasher with a robot vacuum station underneath and forget all the extra doodads.
But wait! There's more! Buy now! and you can get this for 499.99 in 3 and a half easy payments!
Resonance and kinetic shock
You didn't mention: the friction in the syringe plunger, the change in pressure within the syringe, the relative humidity of the air. But I did skip the giant advertisement at the end.
Woops left the dog at home came back and my expensive robot vacuum is in pieces everywhere
08:38
But it take Very long time to clean.
Can we make faster than it?
Seems like this endless water technology could be easily adapted into a fuel source for hydrogen powered vehicles
Empty your mind, be formless, shapeless - like water. Now you put water in a cup, it becomes the cup; You put water into a bottle it becomes the bottle; You put it in a teapot it becomes the teapot. Now water can flow or it can crash. Be water, my friend.🙃
Water is a really interesting substance!
But advertises not so...
"evaporation is not effected by pressure" 5:30 evaporation is very much effected by pressure, what do you think the vacuum does? It reduces vapour pressure, and reduces the required kenetic energy that molecules/atoms need to break away from the liquid and evaporate. This statement is just wrong and misleading. Under high pressure it requires more kenetic energy for molecules to evaporate, and under low pressure it requires less kenetic energy
Standard Ideal Gas law applies.
Yeah I thought so too. It's odd seeing him say it isn't.
He's right. The rate of evaporation is largely independent of pressure.
But the external pressure obviously matters to determine the point at which the partial pressure of the water vapor is equal to the pressure trying to collapse the bubbles in the water.
Pressure does not reduce the vapor pressure. The vapor pressure is not dependent on pressure. This is the equation for vapor pressure ln(P) = -(ΔHv / R) * (1 / T) + C. It is only dependent on temperature. You are confusing boiling and evaporation. That is what this video is trying to clarify. A lot of people get confused on this point. There is the same amount of water in the headspace above water at the same temperature in a vacuum right at its vapor pressure, or at ten atmospheres.
And no under high pressure it does NOT require more KE for a molecule to evaporate. The KE of average molecules in a gas is entirely a function of temperature and the energy required to evaporate is fixed by the enthalpy of vaporization. If pressure mattered you couldn't compute that.
The only place pressure enters into the picture is in determining the temperature at which the partial pressure of the vapor constitutes boiling and thus indirectly only the average energy.
What he meant by "evaporation isn't affected by pressure" was that the equilibrium water vapor partial pressure that evaporation is trying to reach before stopping is determined only by the temperature inside the sealed system, not by the pressure of other (non-water) gases in the sealed system, which is generally a true statement. A vacuum pump doesn't change what the equilibrium vapor pressure should be, it just removes vapor such that the equilibrium vapor pressure is never reached, similar to how a non-sealed container of water would do in open dry air.
What a coincidence. i decided to pull out an old book of experiments from when i was a kid and started redoing these for fun. The first experiment is water evaporation. Less than 5 minutes ago i stated this and you upload this video. great stuff
I got a "lab" experiment for you.Find out of it's true that all paper money has a metallic strip in it that can be detected, then create a money detector, that can tell how much money is in a wallet without opening it. Imagine if everyone knew how much cash you had... lol
The boil restriction reminds me of rush hour on subway train: There's nowhere to move so nobody staggers about.
Damn, we've got all hardwood floors and a Husky that blows her coat twice a year, but I'll just pick it up at the pawnshop when some crackheads need cash and have keys to the mother-in-law's house. Uh, not that we know anything about that, Mom. Love you!
I cringe at the energy waste to condense and evaporate water just so that you don't have to refill and empty a bucket from time to time. That idea just seems completely insane.
With solar panels on every rooftop powering it, we can all have drinking water and robotic floor cleaning water generated on the spot.
Basically, the charging station has a built in dehumidifier.
Well, we can see the _hot vapor,_ but not actual steam.
Isn't the "steam" you can see actually recondensed droplets of liquid water suspended in the air? Same thing as clouds?
@@JayKnight: I'm just saying that if we can see it, it isn't steam.
Wireless package delivery is pretty easy, but you can't teleport the water either.
Seems so odd that after robot vacuums being around for so long they still haven't found one that can conquer its true nemesis: stairs. I'm never going to get one if I still need a regular vacuum even if I were to spend all of the effort of occasionally moving around which floor the robot is on.
Ah yes, my favorite, Water and Air.
It's clever but it's basically a dehumidifier and a robot vac combined with an app. I'm not knocking it but its a variation on a theme rather than something new.
Well, it's not actually free to move because the pressure has to overcome the friction of the rubber seal.
"Green light technology"
So, a green light close to the ground
Next, robots that can bring you a glass of water without going to the sink! 😮
Never thought that a science channel would be sponsored by a vacuum cleaner company 😅
So, the robot station is like a dehumidifier? That device pulls water from the air and is collected in a container. Am I close?
Did you take account of the friction from the plunger seal in the syringe? I bet the result would be at least a little different if a fictional frictionless plunger were used.
Can someone living off grid drink water from a dehumidifier? Or does the water get contaminated by stuff on the coils or other parts of the dehumidifier?
I mean, I would imagine so if the components were sterile. My dehumidifier water always seemed clear and odor free. I never tasted it or analyzed it for bacteria though.
Mopping robot❌
Room dehydrator ✅
The water footprint is low, while carbon footprint is high
if you skip back (with the left arrow key) when the syringe is in the microwave oven you can see there's an increase in volume, albeit minimal.
Humidity will be lowered due to this. The room air will be dry like hell
Huh, that mop is kind of cool. I've had a dehumidifier running for a while and it's shocking how much water it pulls out of the air. I've been thinking that there has to be some interesting things that could be done with that water rather than me dumping it down the drain every couple weeks.
It must be real rough in ActionLabland, boss just straightfaced the line "green light technology".
The first time I saw water boiling in a syringe was when michael from vsauce pulled the syringe to put a vacuum in it.
why do you show a vacuum to be the same as those other gases? pressure has a very definite effect on sublimation and evaporation.
8:24 Sorry but how in the world does that increase cleaning coverage by 95%? Does it allow it to clean the ceiling?
I do a type of void speed painting where I turn my crayon into a universal transponder. I do believe you can take anything out of emptiness.
So you have to spend energy to condense and boil the water, then in the summer use even more energy to transport that waste heat outside with your AC. Sounds like a lot of energy. How often does the compressor need to run? I can't find any specs on the power consumption.
My nano rototic vacs cleand the spots off my dalmatian
If you boil water in closed compartment to 100 Celsius water is still in liquid state but if you open relief valve it becomes steam. In petrochemical industry or plastic industry relief valves are adjusted to that scenario if not tanker or reactor will rapture.
If I'm not mistaken such a system, except a lot of energy, needs a costly water-filtering system to clean dirty water from microbes and bacteria
Actually, there was a slight increase between 2:25 and 2:35 as the black rubber part had moved fractionally to the right.
4:51 what is the link to the sim?
For condensation I was used to a different model, which relies on the maximum amount of water which air can contain. When you suddenly cool air down like with your metal, then the amount of water the air can hold decreases, and all excess water turns liquid. (Saturation vapor pressure decreases)
yes but air doesn't "hold" water. It doesn't matter what is above the water. The same amount of water vapor will be present at a given temperature. Most people refer to air "holding" water, but it isn't correct, its just a convenient way to say it.
Drying/evaporating 1 liter of water costs about 0.7 kWh.
Dry your laundry outside if possible.
Why don't we make a large solar cell with a dehumidifier connected to it that stores water. For third world countries where there is a water shortage.
So it dries out my breathing air and scans the layout of my home. That's some Russian hybrid warfare stuff! :D
The robot vacuum is bad. You can't train it to put the dust in the bin.
I kinda expected the bloody thing would cost $2000. Everything technologically advanced is for the WEALTHY. I mean... who--other than the 1%--is going to do that? The other 99% of humans on the planet have to stick to cheap vacuums, even cheaper mops, and sometimes just simple RAGS and figure-eight motions with carbonated water! :D