Making a Water Railgun

hi today I'll be making a water railgun or at least try see originally I wanted to rectify this stupid video made by this guy who makes fake videos and gets millions of views millions of views you can instead spend at my sponsor Brilliance to learn actual skills you can Excel your life with sign up from the link in the description for free to get a 30 day free trial free more at the end he shows by placing two electromagnets on the side of a steel pipe you can make a very strong pump Rectify time directed fire I mean some poor Farmers may see these videos and think hey why should I pay for an expensive pump when all I need is to slap two microwave oven Transformers together to make a super strong pump and end up electrocuting themselves and a lot of us content creators have to waste our time debunking this rubbish and hopefully educate more people in the process while in fact getting more views ourselves and make some extra juicy internet money uh so I guess I should be thanking these fakers what no you don't teach anything by misleading people anyway trying to debunk it I wound up in a deeper educational Rabbit Hole well the video is obviously fake because among other things water is not magnetic repeat after me water is not magnetic I noticed another YouTuber called thinklist already made a video debunking it showing that although the pipe seems empty in another scene he actually tried and failed to hide an actuator in the pipe right there torsion magnetic field effect or in this scene he's actually hiding a powerful pump under the water and he's pushing his pipe into then thinklist mentions something that intrigued me it's just not enough uh ions inside of the water to be able to push plug what do ions in the water have to do with anything and then he mentions another effect there is actually a way that you can move water using magnetics and it's called Magneto hydrodynamics Magnet or hydrodynamic that's a mouthful he doesn't explain it in details and refers us to a video made by the one and only the action lab Mr lab actually moves water using a set of permanent magnets and running DC current through the water so is water magnetic no you can't move water with just electromagnets like that fake guy showed the whole premise of moving water is based on the fact that in pure water is conductive like this see resistance such tests with 120 volts is dangerous and can instead be done with a low voltage battery and a single LED you can't do these tests with non-conductive pure water the more ionized impurities are in the water the less resistive it becomes now placing a magnetic field beside the conductive water I should be able to create any currents in it well electric Eddy not fluid Eddy watch my previous video on eddy current and of course we need AC power because without changing magnetic fields you won't induce current anywhere but what do we expect to happen let me try something first so this is my microwave oven Transformer that I modified in my previous video to make thousands of amps I don't need this anymore let's hold the core with the clamp so it doesn't fall apart and this is a sheet of Steel now if I turn the electromagnet on and place the sheet metal on it oh my fuse popped without the top of the Transformer on the magnetic fields close to the air which is what we want but that significantly drops the inductance raising the current anyway I placed the sheet on First and turned it on so in a bit of time we have we can observe something oh the breaker popped that's vibration yeah trying to lift it the breaker popped so magnet strongly attracts the steel now I try a sheet of aluminum that is not ferromagnetic so this one falls off I'm holding a sheet of aluminum above the magnet and let's connect and disconnect it to see what happens oh I guess it's time to put my stressed old friend to sleep rest in peace Oh see it is moving up now see changing magnetic fields create Eddy currents in the sheet of metal that oppose their creator that pushes them back same in aluminum or steel but in still that is awesome oh nice ferromagnetic its magnetic particles also line up with the creators fields that create an overall stronger attracting magnet water is not magnetic so I expect it to behave more like the aluminum sheet being pushed away from the electromagnet let's see let's make some highly saturated conductive water now we pour it in some plastic plate thingy hold the electromagnets on top of the water ah I'm plugging it oh well make sure nothing is shorting first then plug it in oh [Music] it's getting attracted to my table fine I'll bring it close to the water from under the plate it's easier to hold too okay let's see foreign absolutely nothing I'm pretty sure there must be a very small force on the water but apparently not big enough for me to see any movement and I think I know the reason why you remember how little my aluminum sheet moved and its resistance is well under 1 ohm and the resistance of the salt water is like what minus two Mega ohms I think I made a battery I'll run a constant 10 milliamps through the water and the voltage across it is ah 1.2 1.3 volts so around 130 ohms now if I raise the current to 0.1 amps two point three almost like 23 ohms the resistance of the water is not linear I hate working with salt water I'm all salty in any case the Transformer creates the same electromagnetic force or voltage across both these but the resistance of the salt water is like hundreds or thousands of times larger than the aluminum sheets so much smaller Eddy currents are created in the salt water and almost no effects so that video was fake as but let's see if I can make that water railgun I was trying to make using the Magneto hydrodynamic effect or whatever let's do it [Music] some magnets on a sheet of plastic with the same polarities facing the same way all right cut two strips of aluminum sheets then hot glue the strips perpendicular to the opposite side of the plastic sheets on the edge of the magnets like this there and now I can cut the extra piece of plastic and here is our tiny little water railgun which is very much the same as a regular railgun why do I call it a railgun because it is a railgun I explained the railguns in my previous video but let me explain it again so there are these two rails with a voltage potential across them and some conductive Bridge shorts between them creating a current through the loop and magnetic fields around the wires that pushes the bridge forward you can significantly increase the magnetic field between the rails by adding permanent magnets above and below the rails and that increases the force on the bridge and makes it shoot faster the bridge can be anything conductive like salt water issue is salt water has much higher resistance compared to say copper that limits its current much more and so much less force on it what I'm saying is that don't raise your expectation too much and here it is connected to a power supply that can do 30 volts 10 amps now let's pour some highly concentrated salt water in it and see if it shoots oh oh it's shooting out [Laughter] and it's boiling oh my god let's add some more it is shooting out well well shooting is a strong word I guess it's just sliding out and of course if we switch the polarity of the voltage now it should go the other way goes that way you know there is too much cooking going around here I think the water just should shoot out quickly and get out of the way before it just boils here hmm you know what can make it shoot out faster higher current which means higher voltage here's an old friend the full Bridge rectifier with a giant capacitor at the output that can create 170 volt DC that's connected up here you go the app around 160 volt DC at our disposal okay let's plug it in now how fast would the water shoot out place your bets in the comments ready to go oh geez oh no well the good thing is that it burns itself out but the water doesn't get out of quickly well let's try it again anyways it doesn't really shoot does it it's all melting the plastic is too flimsy and the hot glue is hot glue oh let's try again anyways cheers oh my God I have a feeling my magnets are doing nothing and this brings us to the issue of permanent magnets and heat here is the original magnet still nice and strong but these guys lost their magnetism because of the heat if there was a constant stream of water cooling it down they would survive they barely stick together now here I made a new one but this time instead of pouring water inside of it and let it get stuck and boil and burn and melt I'm going to lower this inside the water with my 160 volt DC and let the water keep flowing through it all charged let's put it in oh wow should I just quickly dip it let's try it no the breaker popped it's drawing too much current let's put it in the water first then I'll quickly connect the wire Ready Set Go yeah it draws tens of amps and my Breakers Pop I guess I have to limit the current to the 10 amp from my power supply and we connect it up what I was shocked by Infinity Ball DC I guess salt water makes your skin so conductive a lot more current runs through you key is not to touch any voltage okay let's see it's flowing very slowly it's not even visible let's pour some pepper on it maybe add some pepper to your mix and hopefully this time we'll see what the hell the floor is under the peppers what a flimsy flow I'll just put it the other way under the water like this oh oh we have the flow we have a flow [Music] 10 amps for such a tiny flow I wonder if all these gases coming from the water are poisonous or not [Music] [Music] shame to the name of a railgun well at least I guess it's some sort of motor with no moving parts that destroys the water and is super inefficient and creates poisonous gases so I guess it's a win and now we have firework damn it and the motor is destroyed jeez this is more fun who cares about the railgun look at this um is water railgun any good not really it constantly breaks down the water under electrolysis to create a piece of a water flow just use a motor not this garbage well I guess every experiment is an educational opportunity and you can learn a ton of knowledge and skill sets for such projects from my sponsor brilliant and the great example is lessons on electricity and magnetism which are full of illustrations animations and explanations to get you started on electronics and you can do it free visiting brilliant.org electroboom to not only get a 30-day free trial in which you can finish a ton of lessons already but also the first 200 people to sign up will get 20 off Brilliance annual premium subscription why do you think I like to put things together myself because interacting with stuff helps you stay engaged and learn better and that's why brilliant is the best place to learn simple to come complex concepts of math science and Computing through interactive lessons like you know how artificial intelligence is becoming huge maybe you like to deepen your understanding of AI before you take or maybe you have a specific need to know some math science or Computing for your work or school learn it at your own convenience at Brilliance 30-day free trial it's like they want to give you gold for free sign up from brilliant.org electro boom and enjoy learning and feel confident about your knowledge and thank you for watching all right

Channel: ElectroBOOM

Views: 3,211,016

Keywords: educational, electrical, ElectroBOOM, science, electronics, engineering, entertainment, equipment, measurement, experiment, mehdi, mehdi sadaghdar, arc, mishap, physics, Sadaghdar, test, tools, circuit, funny, learn, shock, spark, discharge

Id: Qy81O7LrB84

Length: 16min 2sec (962 seconds)

Published: Thu Feb 09 2023