ฝัง
- เผยแพร่เมื่อ 8 มิ.ย. 2024
- Mixing water with electricity is risky, and can be lethal. However, in this project we're using it to make one of the cheapest kinds of power controller. The Scariac.
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WARNING:
This project is extremely dangerous and should only be attempted by those highly skilled in working with electricity. High voltages and high currents passing through the water provide an open hazard of electricution, and may cause death. This design does not include any electrical ground. This system is not recommended as a safe device. It's purpose, rather, is to regulate electrical current in a simple and low cost way. Toxic gases may be released from the solution during operation. This project should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in serious injury. Use of this video content is at your own risk.
Music By: Jason Shaw (RP-DirtRoadTraveller)
www.audionautix.com
Project Inspired By:
/ acronus in the video • Video
Project History & More Info:
I needed a way to adjust the power running to my homemade stick welding system, but had a lot of trouble finding a system that could vary electrical current without costing an arm and a leg. In a tight situation, it's good to be aware of options, and that's why I was happy to learn about the idea of the water resistor.
The Scariac is a name I got from / acronus and duplicated with permission. It's a fitting name since the system acts similar to a Variac. The idea is to use a water based medium as an electrolytic resistor. A bit of electrolyte is added to the solution to make it slightly conductive, and when two electrodes are placed in the solution, the allow more or less current to flow, depending on whether there are closer or further apart.
Although I've taken thought to minimize risks in operation, I have to stress that I don't consider this device safe or fool proof. It has the potential to be lethal, and even though I show step-by-step how it was made, this is more of a "How I did" project rather than a "How to".
#tkor #thekingofrandom
Seven years ago I was memorized by this guy's videos and this one in particular, now 7 years later he is sadly dead and I'm an electrical engineer!
He would be proud
What can we say, he was the one that mattered
9 years now
This was how theatrical lighting dimmers worked around 100 years ago.
*30 years ago
no, 100, he is right!
yeah, before the invention of magnetic amplifiers.
I believe they had saturable reactors then, as mentioned magnetic amplifiers.
No wonder they said break a leg I think it's better to break a leg them get ur heart burn outta ya!!
Welcome to his laboratory. Safety isnt number one priority.
drkastenbrot welcome to mah labroaratory
drkastenbrot Welcome to the internet my friend, where you can learn how to make bombs and guns, and many actually useful things, information that is not given in your classroom for fear of your own safety. The world is big, and you miss out living in a bubble.
drkastenbrot instead death is number on priority
+drkastenbrot Certainly all those warning stickers in the same area don't mean anything
Lol nice reference to crazurussionhacker
These were actually used in the 1930s. A wooden box was sealed with pitch (tar). An acme screw was attached to a plate and a bushing set in the end of the box. Another plate was placed at the end of the box. The moveable plate had holes drilled in it so the water can pass through. Grease sealed the threaded bushing, and a crank was turned to move the plate. I think they were called water resistors. Mines and sawmills used to scrub off old monopole power supplies by throwing steel coils into a nearby river or stream. This also provided fresh fish for the employees. If you can find a 1930 Electrician's Handbook, check it out!
Yes. NurdRage actually suggested I use Copper sulfate as an electrolyte with copper because there would be little to no electrolysis at all. So that is probably something that could be looked into. You're right about the root killer. I have a bottle of those blue crystals in my collection :)
I see absolutely no way in which this could go wrong.
None, none whatsoever
Nope, no way this could go wrong
I cannot think of a way that this can go wrong
There is no possible way this can go wrong in any way
Said no one ever
"This is about as dangerous as sticking two live wires into a bucket" That's EXACTLY what your doing
I have stuck two live wires into water for years and never had a problem. It is when you add salt, or in this case Lye that problems can occur. I filled 12 Coka Cola 6.5 oz bottles 1.5 inches from the top with water super saturated with salt. Then I topped off each bottle with mineral oil. I then took each bottle cap and drilled a 1/4" hole through each one then ran a 1/4" x 6" stainless bolt through each cap. I first put a 1/4" stainless washer and nut on the bolt leaving about 1" of the bolt extending up through the cab then locked the bolt to the nut with another washer and nut. Then I put the bolt and cap assembly back onto the bottle and recrimped the cap. This left 5" of bolt inside the bottle and 1" above. Then each one of the 1" bolt ends I connected together using a thick copper wire. I set the connected bottles into a plastic tub with a metal plate in the bottom and then filled the tub with more salt saturated water. All this made up my capacitors for my Tesla coil.
i reccomend watching ElectroBOOM's videos (just a fact: hes got a masters degree in electricity...). Youll learn a metric shitton about electricity. Simply sticking 2 live wires in water wont do anything IF there are no chemicals in the water. You can stick live wires in the water and touch the water, you wont feel anything. You will start to feel more and more pain as you get closer to the wires.
@@Sharpless2 about 1 year late, but he also has a masters degree in failure
@@apocaloptigon9988 Interstellar rocks.
@@Sharpless2 yum
The rms voltage that you measure with no load is the same all the time because you don't draw any current and therefore your variable water resistor dose not made any voltage drop. Measure again with a load and you will see that the voltage is invert proportional to the value of the water resistor.
as an electronics technitian, this scares me...
a lot...
well it is a scariac.....
MiniBandit007 aptly named.
Oh I know that, It's mostly a question of: Whhhhhhyyyyyyyyy?
***** True, but often there is also a 'you know this could be a really bad idea if something went wrong'. Although, to be honest, most of the time in that case they just toss some more precautions in and give it a go.
Unless you're going to put your hand inside there I don't see any reason to get scared.
I mean, in that case anything that deals with high currents should be something scary.
Yes, it can get very hot and start boiling. The more water you use, the longer it takes to heat up. That's why I chose the large container as opposed to a small bucket.
This one brings back memories, many years ago I worked at a Greyhound Stadium, the electric hare was powered by a 415 volt three phase motor. Up in the hare control room was a lever which dropped some copper contacts into three baths of Sodium Carbonate solution, you may wish to try using that, its also called washing soda, and its much friendlier to use than Sodium Hydroxide. Every time the hare was started a loud sputtering noise would come from the soda baths has the electrodes dropped deeper into them and the hare speeded up. The soda baths needed to be kept topped up as the water evaporated. The hare controller liked his beer, and would always be drinking a pint whilst driving the hare. All that beer had to go somewhere, and it could be difficult to reach the toilet between races. Needless to say more than just washing soda was used as electrolyte. And the room developed a very unpleasant smell. And yes the unit did have a safety interlock, so urinating onto live contacts could not happen. I was often in charge of a very old camera, the negative had to be pressed across a very sharp blade inside the camera, frequently I would catch my thumb on the blade in the total darkness, which was wonderful when the negative was going through the fixer bath, which contained Acetic Acid, lots of gritted teeth Ouch lol!! Happy memories though.
Does this have any benefits (besides a higher wattage rating probably ) than just a dimmer switch as a potentiometer?
Suicide machine bro lol
Yeah, dimmer switches cut the wave in cycles, so they can't be used to test amplifiers and other electronics, p much only useful for lightbolbs, a variak limits current while keeping a pure sine wave output.
@@raphaelroshwalb5500:
Wire it to a chair. Lol.
Let's make our electrical death trap look nice.
+Lord GabeN Yes. It will look nice when you take the crime scene photo!
Do not run single-speed motors with this for heavy applications. Although it can control the speed of the motor, the motor itself does not have a low-speed coil, meaning you can easily short things out if you put a lot of load into the system. Variable speed motors are expensive for a reason. I normally love your videos, but this thing looks like a death trap! lol Cheers!
Very much this
I think I'd rather spend $60 for a basic Variac instead of possibly spending my own life trying to make one
Jesse Carman I got a 0-380V 8A variac for 20€
Exactly
Definitely just picked up a 0-140 20 amp brand new shipped to my door for $55.
Unless you live in an extremely impoverished region, you don't build something like this because you need it, you build it for the same reason people ride motorcycles, or gamble, for the fun of it.
Does anybody know how much current the variac needs to be able to handle in order to weld at 200amp?
Great vid. To those of you who are "freaking out", this device is called a water rheostat. Water rheostats were widely used prior to the 1960s for high-power lamp dimming and many other applications. They are still used today in certain applications. Used properly they are no more dangerous than any other power device and in some ways they are safer. (Water doesn't catch fire, for example.)
1/4" thick acrylic as guessed, and works great for over a year so far!
RIP man
this is the answer to overpopulation
This is even more dangerous than explosives. Imagine having too short cable and pulling this thing off the table (ouch).
Cool!
+pvc988 Or spilling the water out of the side onto yourself while the circuit is live.
there is all types of sketchy going on with this. But it is a wonderful demonstration
imagine if this guy meets colin furze
+Steven Alex :0
MAKE IT HAPPEN GRANT TOMPSON!!!!!!!!
+Steven Alex I'm imagining the day before the world ends.
Mayhem
+Steven Alex they would've just blow the world up
Mental things would go crazy
It's one of mine as well. Thanks for all your comments and your suggestions/experience!
A good Variac (auto transformer) is VERY expensive. I have a 10A Variac and I am VERY careful with it to ensure I don't over load it and cause it to fail. I'd probably use a bucket and re-design for that. Ensure it have a HUGE base so that it was very hard to tip over any maybe even a kill switch wired for tip over (mercury type switch). Run that to a BIG SCR that would be triggered by the mercury switch that shorts the input power and pops the circuit breaker.
You have to be VERY careful with motors. Some do not like variable voltage. Beyond that; VERY KEWL! Even from an electronics tech/electrician point of view!
My last concern is vapors from any electrolysis. Lye is not pretty stuff to mess with!
Still again, very cool!
+Jon Geissinger Also, induction motors get their speed stability from the frequency of the power line. Reducing the current wouldn't effect the speed much. All that would happen is reduce its torque.
+RiaRadioFMHD773 yeah, this kind of stuff is for low-tech things mostly. but i din't know variacs are expensive. why?
+Paul Hendrix It is basically a transformer that has its primary & secondary married with an extremely high rated potentiometer or rheostat between them. Also, to pass high current, the transformer (or auto-transformer) must be rated high as well.
Haha, I think if Grant thinks it's too complicated for him, it's safe to say it's too complicated for the viewers :)
Love your vids Grant please keep it up!!
Some people would suggest all potentially dangerous information be highly controlled. Even a sharp stick can be deadly, better control it! On the contrary if u listen he warns u of what not to do and what to be careful with. What is safer? experimenting blindly or semi-guided? I love your experiments!
A good used variac is much cheaper than a trip to the funeral home.
I suppose you could use sticks of
old dynamite to hammer nails in to the wall also.
Yes, why not? Dynamite is extremely stable and shock-resistant. I don't see a problem
HeisenTwerk Well, just replace it then for the nice little substance dynamite is based of.. xD
(Nitroglycerin)
HeisenTwerk Also, Old Dynamite starts to leak or "weep" the nitroglycerin, forming crystals on the sides. This makes old dynamite extremely dangerous since it looses much of the stable nature new dynamite has.
All in all, I wouldn't handle dynamite sticks recklessly like that. If you still want to do that I wish you luck - you're going to need it.
You should replace the camera with this in a camera booth and change the name to "suicide booth"
Lol yusss
I'm surprised to see so many thumbs down on your videos . I don't understand why people would do that unless the videos are made bad ! Your just trying to help people and nobody's perfect , and we all need to make a living , more now then ever that all are jobs are going over sees !!
I really thing you have some followers that are just jealous !! Keep up the good work and I think your videos are grate ! Thank you .
It's not that they dun like it or they are jealous, they just feel that it's dangerous, and he shouldn't do it
I think that they're great ideas, and not dangerous at all as long as you understand the difference between voltage and amperage, and are cautious of what you are doing and your surroundings. It's like that saying; people often fear and reject what they do not understand.
@@mattheweder5437 u still alive after these 3 years? Just to know
This is why this guy is successful, he is a great thinker and intelligent. Props to you Grant .
3 years later and i still havent made this
+1marcelfilms dont, its deadly a f
its only deadly when you do it wrong
roy k safety is not in my dictionary
3 Years later and Grant Thompson is still alive.
+stonent his 99999999% of his neighbors are died only 1% survive he is going to dead 3 weeks
Oh geez Rick I don't think that's safe
I would love to see you redo this one and seal it water tight as well as well as maybe adding a ground fault in case of a leak.
no he needs to run the electrical current through an Isolating Transformer first. if he does that, then he theoretically could put his hand in the water and not get a shock ☺
308 people have no balls to try things out of the ordinary.
I've got a book from the period from 1860-1890. They used a system just like this, but with dozens of cells, to control the detonation circuit on naval mine fields. In other places, I've seen the same thing in books on "The Boy Electrician" circa 1910 Great grandpa wasn't a wimp.
tkor then: *almost dies from electrocution*
tkor now: "WHAT HAPPENS IF YOU MICROWAVE A PENCIL?"
Good high power potentiometer, however you didn't see voltage change at the output (voltage drop on water in the bucket in other words) because you have measured it without load, so almost no current gone trough the scariac :) that's why it shown about 120V for all it's range.
Thanks for your work and keep up with interesting videos!
I saw this when it came out...man i miss you man. You were the first videos i watched. Rip Grant (the king) you will be missed😢😔
(Edit) your the reason im so curious man. Youll never be forgotten
Who else watches these projects and doesn't do it? btw dont take me wrong though,i like your videos Grant!!!!!!!!!!!!!!!
Me
Me
Me
i watch this only to learn anything
+Konstantin Demenko okay
Great project! Though I suggest using cheap ground up hydrogel in the water so it can't spill. Hydrogel is usually used for adding to garden soil and it's cheap. Or you could use another gel thickening agent, but anyway it' might be a good idea to use a gel to prevent spill risks, then you don't have the risk of water everywhere + electricity. With that change, I think this would be a much less scary controller.
Also as an electrolyte, you might use something like magnesium sulfate aka common bath salt, though lye is probably fine and lye might help reduce the likelihood of electrolysis breakdown of water as mentioned earlier in the comments.
Michael Casper I think a breaker would also make this much safer, make it integral and put wires near the rims of the box to the breaker, parallel to the normal current, and that would ground out against the electrode that is always in the water, so that if water makes contact with those wires it shorts the breaker before water can spill.
Rip the real king of random
I don't know if you still check comments on old videos, or even if you read comments at all, but you just answered one of my biggest questions about old tech in my field. I'm a lighting designer, and I've heard of salt water dimmers (at least i think that's what they were called.) I never knew how it did resistance and what not, but now I do. Gonna be telling my high school students this knowledge!
I'd love to but it's complicated. Have you ever made one?
BTW: for safety you at least need a ground fault interrupter, seriously, if you want a poor mans power controller: get an open source design with arduino and a couple of high voltage triacs, at least you can put it in a completely sealed can and not get electrocuted.
How are you going to put a GFCI with no reference to limit any current with ground
Then you don't have a pure sine wave output variable current limiting resistor.
Needless to say, I won't be making this.
same
Agreed, it's an interesting thing for sure... but it's one of the sketchiest things I've seen this guy make.
There really isn't anything terrifying about this, even if you tip it over and knock electrified water everywhere, as long as you cut the power it won't do anything bad. This is just a different form of variable resistors, really. When you use a volume knob on a speaker it's doing something similar, it's just adjusting a winding that changes the flow of current.
This just relies on distance between electrodes in a conductive material. It's actually really cool. It also demonstrates why movies and pop culture are full of morons. You won't die if you stick a hot power line in water and put your hand in it. It depends entirely on how impure the water is. ElectroBOOM actually did a great video on this and it illustrates perfectly that conductivity in water is inversely proportional to distance. The closer two conducting materials are within the water, the more current/voltage. The further, there's none or next to none.
Of course if a toaster oven falls in the bathtub while you're in there you may die, but that's because they run on much higher amps and volts. But "normal" household voltages like 120VAC? Nah. Not unless you mix half a bin of salt into the water.
john black well the saltwater is a conductor and should act as one, like a copper cable. But the Difference to a copper calbe the water has got a higher resistance value that changes with the distance between the poles and the ionisation state of the water.
Ohms law applies for AC and DC.
At least I hope I got it ... have a nice day
+john black in this particular application, the use of AC does make it particularly dangerous but once again, as long as it's constructed with isolation in mind (it is) then there's nothing to worry about.
The only danger when using this would be touching the output line when the closest distance/highest voltage.
Lye is good for this because it turns the water into a much better conductor. Water itself is not conductive as I'm sure you know, it's the impurities within it that are. By adding salt or in this case, lye, you are altering the conductivity.
Wonderful. Your use of tools and easy components is noteworthy,
Nice design and useful for high current applications, in the mean time I will use my ancient Eico 1078 variac for low current. For those who don't know, the liquid rheostat has been around for years and is still used in some industrial applications.
The cleaner is just like the cake. 100% lie.
um.., It's LYE not LIE
meh.
Man it must be so cool to live in your house. .. u got all kinds of awesome stuff just
This is actually how they control the big 3 phase motors used in some car shredders because it is cheap and very robust. The only things I would change is to use plastic coated wire staples, include a ground through the whole system and possibly use a container that has thicker plastic walls.
So dangerous, but so ingenious. Love how things are explained, so people who want to follow are able to.
Grant Thompson is a genius, and his videos are among the best things on TH-cam. But this project should be skipped at all costs. THIS IS A FUNERAL WAITING TO HAPPEN. Seriously. DON'T build the "scariac". Move along to something much safer, like hammering homemade rocket fuel explosive into a piece of PVC tubing.
^
Safety is a weird thing indeed, making some electricity through water is extremely dangerous yet hammering high explosive home-cooked rocket fuel is safe. That's why it's important to know the risks. I just hope that Grant would tell us a bit more about the theory and actual technical risks and considerations. Second channel? :)
Yeah he is awesome 🙌
Jameson Stratton its very dangerous
As long as you have a basic understanding of electricity this isn't really all too dangerous
I did this when I was just a kid using jam jars. Burt if left too long at maximum res the water starts boiling and makes a mess.
Joe Grech it didn’t boil it’s actually hydrogen and oxygen. It’s called electolysis
@@ethanparr8642 it’s probably not electrolysis because boiling water and electrolysis look very different and passing high currents through water heats it up a lot especially when it’s conductive
when I first saw the thumbnail for this vid I though you were making a saltwater rheostat, which is what we use for load testing generators in my line of work (electric motor/generator repair). A saltwater rheostat uses regular rock salt as an electrolyte and current is controlled by adjusting the amount of surface area of one of the electrodes (usually an old buss bar) submerged in water. one is fully submerged, while the other is suspended above the water and submerged slowly (using a chain hoist works pretty well because it gives you quite a bit of control) so as to adjust the resistance but this is still pretty cool!
Thanks mate. This is what I needed for my MOT welder and my table saw. Brilliant device.
That moment when you want to try some of the things in his videos, but love you life too much to die
simple, useful & cool as all hell !.....I think the only "real" danger is the "potential" build up of H/HHO... which is extremely explosive !....although typically DC is used in electrolysis where the goal is "collect" Hydrogen and/or oxygen....I'm quite sure that it is NOT possible to have 0 gas emissions @ voltages that exceed the separation/breakdown of H2O/electrolyte... regardless of AC vs DC
I like you.
what? simple, useful & cool as all hell ???!! this stupid idea reduce curet and your electric motor burns because you dont have enought curet to get motor spinning
Adam Valent did you watch the video?
do you study it?
just to the point that I'm pretty confident that the concept is fairly sound....& once made a similar apparatus long ago.
All the people who are negative about this or think you can get off cheaper just buying this stuff, are right. But if you make it on your own, it can be really special, you can make custom changes to it and have great fun in the process. Anything can be safe if you make it that way.
thats a really really amazing idea , the fact that the voltage is most time the same you told before: it only controlles the current ;D it would be intresting to see a frequenzy meter on that . I wonna build this too ! Please make more videos on things like this ! i love your diy videos !
265 people are no fun (or were killed playing with this).
nice vid would heat up under high load dangerous beyond belief i love it!
Very interesting project. thanks.
I made this a year ago, with the welder, took me 3 months, still works great, use it a couple times a week, burned out a couple switches since but eh, it was practically free
made one of these for a science fair project. like 3 years ago.. u got me second place man
Try measuring the voltage again with a load on the circuit. It should no longer remain constant because of the voltage divider rule.
This is just a massive variable resistor though, not doing the same thing as a variac. A variac controls voltage with a variable transformer (coils of wire), a potentiometer (variable resistor) changes current. So for some projects, this can't replace a variac.
Yes but potentiometers are not that expensive and if you can't afford one you probably shouldn't be playing with electricity making one of these
Alex lutz most Pots are rated to 1/4watts. The point of making this is to make a pot that can handle several watts. If you tried connecting a potentiometer to any power tools like he does, it's going to blow instantly. I was just making a point that the word pun "scariac" referring "variac" might make people falsely think that they do the same thing.
James Hutton never say pot again
Mike Hart light and fan dimmers are very limited and cannot be used with higher current devices such as the one shown in the video
Light switch dimmers do not limit the current, they PWM (chop up) the signal. Non of the power actually goes through the variable resistor in the knob you turn, that merely controls the duty cycle of the triac that fires on every AC zero crossing. This method connot be used for most power tools with motors though. That's why most of them have a built in variac... like I originally said.
Of you open most motors with speed control (such as a fan) you will see a multi-tapped transformer, so changing the knob just changes the voltage by changing the amount of windings of the built in transformer.
GREAT music, great guitar work. Way cool variable switch/pot
you should have a nobel prize for this
What year are you watching this
R.I.P. Grant
I've used water and salt solutions as current limiters in a charger for a rather energetic capacitor bank I have. It won't burst into flames like normal resistors taking power straight from the mains.
This concept has been used to control electric motors for a very long time. When wound rotors were common on AC motors, they used electrodes wired across slip rings, submerged in resistive solutions to adjust the rotor resistance and adjust speed. Very very very old technology
Sure, a variac cost more than your life
There are far easier and safer ways ...
But fun and deadly nontheless.
How are you so freaking smart? I'm 16 and have been watching your videos for a while and all I can say is wow... I would have never thought of that.
dude, you need your own TV show. this is nuts, and i like it!
Does this not get hot or produce hydrogen gas under load?
there's no fixed anode or cathode.
+ZeroFossilFuel Yes, it does both.
Quantum Leap have you made one?
Priyansh Yep, back in the '70's. It's not really safe or practical. Aptly named, Scariac lol
+Quantum Leap
AC current doesn't produce hydrogen
436 people got there family members killed by this machine
*Their
+Itsymes 23 Actually "their" because you don't capitalize words mid-sentence :P
Why are people liking this? Lol
900k people still post nonsense comments like this and experts are worried: THE NUMBERS ARE INCREASING!
Awesome job!! M not sure I would have thought of all that!!!
Great Invention.
Thanks for sharing.
The Cake is a Lye... ;-)
Florian Daßler
Laugengebäck
Aber nicht mit dieser Konzentration von Natronlauge... 😂
Only basic people lye...
gooddeed26 This comment Made my Day ;-)
Florian Daßler ':3
4:58 Why the hell would you use a plug without a ground on it. Are you deliberately trying to make this thing as deadly as possible?
+Alex Golembeski That may cause a ground fault circuit interrupter to trip, which is the point of it.
+Alex Golembeski Better yet, look 5:15 how he screwed cable to the board !
Mark Schulz IV I have to admit that is pretty sketchy, he probably pierced the insulation...
Mitchell Spanheimer Yep, and over time, the sharp screw, due to movement, can cut into the wire just a little bit to short it out, but not enough to trip the breaker, so it could cause fire. It's unlikely, but it could happen.
yeah but at least you can put the fire out straight away thats a plus
Same sort of thing, used on HV. Motors, to give them Resistance on Start up,to give them Torque,under load.
They are Called Liquid Satrters, a Mixture of Washing Soda and Water in a holding tank,with the electrodes in it....
Has anyone noticed that it is so hard to make this stuff but it is still entertaining
THIS GUY SHOULD GET AN AWARD!!! THIS GUY IS A GENIUS AMONG GENIUSES! :D
A Darwin Award
IT DOESNT HAVE GROUNDING
Are you out of your Vulcan mind?
Una resistencia variable de lo más simple y efectiva, en lo personal ocupo un reóstato de 10 amperes, funciona muy bien, el limitante es la capacidad y disipar el calor. Te felicito las ideas simples son las mejores, funcionan y funcionan muy bien.
Saludos.
This is really cool!! I would like to know though, what can I use as a substitute for the drain cleaner if I were to build something like this??
All these videos are awesome!!
No wonder the voltage was constant through the entire cycle, when you've added no load to that variable resistor whatsoever. Variac is a variable transformer that regulates the voltage. A resistor limits the current. The voltage will drop when the load increases.
Am I the only one thinking that this guy should go and figure out more before doing this kind of stuff?
Ciara Fozard Basically ELI12
+Ciara Fozard
A variable AC transformer (variac) changes the voltage. This is just a high amperage resistor that does things other than change the voltage. Though it does pretty much the same job if you just want your things to spin slower.
FrozenHaxor He doesn't need to figure out anything to be able to build and use this device.
Not... Grounded... This is less safe than Chinese heated shower heads.
Theres no need to ground as theres no metal parts... What exactly do you want to ground?
Jmanisgreat lastname the chassis is nonconductive. there is nothing to become live. grounding is not necessary.
I was referring to the electrolyte. If someone were to leave it plugged in, a child could come up and put his /her hands into it.
If you grounded the electrolyte... There would be current to ground....
Yes, this is true
If you can find an old sewing machine foot controller they make great speed controllers for a dremel. Some of them are even built with regular wall plug type connections, just plug the controller in the wall and your dremel into the controller. I have a couple that I have been using for years.
This is a brilliant concept. Thanks for posting.
or i could just use a big dimmer switch
would that work the same? and could i get that on a regular hardware store?
Theworldofstuff if you have one that can tolerate different kinds of load. A purely resistive load is different than an inductive load for example. If you tried to power a home made welder with just a light dimmer it'd burn out
It also would have the potential to get stuck on.
No.
Am I the only one who watches these vids but never make anything😂
Graz Daz Same
Graz Daz almost everyone
RIP dude, you will be missed.
I may eventually build a fully sealed version of this. I've had mercury tilt switches go bad on me before. it's not cool when you're in a current intensive application....
You may not realize that the danger of this thing is not just Current but the fast effort in this device making chlorine gas and Hydrogen gas your breathing which is highly toxic and deadly. Sodium Hydroxide is an alkali same as Potassium Hydroxide both are water soluble while both cause exothermic reaction when added to water. I think using Potassium Hydroxide would be a way better electrolyte It will still create Hydrogen gas though...you can use Kool-aid too...I would just get a converter or use a dimmer switch easy and way cheaper. Great Video though...
a dimmer switch doesnt work. its a different principle (PWM)
its more a proof of concept that you can do it
You make no chlorine when you electrolyse sodium hydroxide solution. You get chlorine gas when table salt is your electrolyte. There is no chlorine present in his electrolyte. Sodium hydroxide and potassium hydroxide do NOT explode in water, only sodum metal and potassium metal. Huge difference. Sodium hydroxide added to water would actually cool the water down slightly. No exothermic reaction lol.
This reaction will produce hydrogen gas and oxygen. The sodium will stay in solution as it is not stable underwater as a metal.
In order to produce sodium metal from sodium hydroxide, you need to melt (not dissolve) the sodium hydroxide (takes about 300C) then stick your electrodes in the molten salt. If water is present in your sodium hydroxide, you cannot produce sodium metal.
Proper controllers are expensive and light dimmer switches will burn out with the load of a power tool connected to them.
Dimmer switches do not work the same way. They also can not handle high loads, like using it to power anything other than a desk lamp thus defeating the purpose of it. Sodium Hydroxide is lye, and you know where else that is? SOAP!
So you're telling me that soap will cause an explosion when I use it in water? I've been living dangerously my entire life!
you should do some research before you make electricity claims you know nothing they make them I use one 600w rotary dimmer
I just thought about something. You know how some people burn copper till it turns black then clean the black off to expose the reddish orange corpus Oxide layer it leaves behind? Well I wondering if you use copper as the medal in your electrolysis and instead of stainless steel and get the water as reddish orange as you can get it if you could soak paper towels in the reddish orange water and get it saturated with the corpus oxide and use that to make homemade solar cells. You could use copper sheets and put the corpus oxide coated paper towels on top of a copper sheeting. If that would work I think you would have a better solar cell than people are making buy just heating up the copper sheeting till it get a good layer of corpus oxide on one side of the copper. I think this could work better. I am slightly retarded though. LOL true though
Steve Rabon Hey, your thinking outside of the box. That's something that the whole world needs, so keep it up! :D (Just so you know I have no idea what any of what you said means.)
You know how people torch copper sheets till it turns black then clean all the black off to expose the red corpus oxide that is caused by oxidizing the copper? When you do electrolysis the water starts to turn reddish orange because the oxygen that is liberated from the water molecule reacts with the copper and produces corpus oxide. Now I am wondering if you take a paper towel and soak it in the corpus oxide if you could create a homemade solar cell. If you have the corpus oxide on one side and copper sheets on the other it creates an homemade solar cell. Some people just burn the copper on one side to produce the corpus oxide. I was thinking if you done it with electrolysis it would create a better homemade solar cell. I am retarded so I might not be describing it well enough.
Maybe this will help understand what I am talking about. buelahman.files.wordpress.com/2011/01/homemade-batteries.pdf
Sorry wrong url here cdn.preterhuman.net/texts/survival/Homemade%20Solar%20Cell%20Plans.pdf
Nice work. Now you should add ball detents to the lever so it'll stay at certain positions.
Not sure if you know bro but they make a clear pvc glue and primer for non-pressure/code applications...works just as good as the blue/purple stuff but makes it MUCH easier to keep a nice, neat appearance on your pipe.
Great job though bro love your videos!
Can you please give me your address so that when the apocalypse pops off i can meet up with you and ride this shit out.
please people dont build this this is the most stupid and dangerous thing i ever see on internet. Safe some money for a variac they are not thar expensive
This is actually old technology. It started out life as what's called a salt water rheostat. It can do things that modern conventional controllers cannot. Namely handle extremely high power very simply. You do need ventilation with the salt water ones because you can kick off chlorine gas. Believe it or not, there are some salt water rheostats still in use today for some 17000 hp 13.8kV synchronous motor controllers in California for their electrical system. Just because it's old, doesn't mean it doesn't work.
kleetus92 Do you know how to calculate the power limit of such device?
Frajolão
Of this particular one? Once it shorts the plate to the bar, the power limit is basically whatever the wire size will allow for continuous current. At positions less than that, it's very difficult to say since it all depends on how much conductivity the electrolyte has, and how much of it is present.The limitation is based on how much energy the water can absorb before it becomes too hot for the container to hold, or it starts to boil.
It really depends on what you want to do with it. What are you trying to make?
Correct, but its information for a survival or civilization rebuild.
I used this for my science fair project and I owe it all to u. You got me second place -WAGS-
Correct me if I am mistaken, but it seems that this "scariac" could be added to an electric arc furnace to regulate temperature. If I am wrong, what is my best option to achieve temperature control for melting various metals?