Saltwater or acid solution would be the cheapest from electrolytes. They of course will be 4-5 magnitudes less conductive than metals. If you have more resources you can choose from low melting temperature metals like: lead, tin, bismuth and their eutectic alloys. You will have to melt them, however, they will cost about ten times less than this.
The injection of that much electrical power must have heated the metal up considerably, did it not? I thought the idea was to extract heat, not inject more of it into the system.
Not really, because the voltage is low and resistance of the metal is small. Maximum applied current was 1000 amperes using voltage of around 1 V, making total power of ~ 1000 W. Some parts of electrical connections were getting warm, though.
Not really. The wires have more ressitance than liquid metal part of circuit so only the cables got warm. And even that happened only at highest amperage.
Aren't most liquids that conduct electricity very distructive to other components? Galium infuses into pretty much everything and salt water will corrode most metals.
It is possible to generate a current without directly contacting the conductive liquid with electrodes. Imagine the electrodes are covered with an insulating layer, and your working fluid is saltwater. When a high voltage is applied to the electrodes, the ions in the water are slowly attracted by the electrodes depending on their charge. During this process, the magnetic field deflects the ions, creating the effect shown in the video. The challenge here is that the distance between the electrodes needs to be small, and the voltage must occasionally fluctuate (as the ions might converge to an equilibrium state).
Does exist a video of AC resonant MHD drive and is its efficiency greatly increased due to not causing electrolysis to happen?
Thanks for the great video about this fascinating property of electromagnetism "engage the caterpillar drive"
Nice video, Thank you for sharing. Would you suggest an alternative conductive fluid, cheaper and non toxic, even if less conductive?
Saltwater or acid solution would be the cheapest from electrolytes. They of course will be 4-5 magnitudes less conductive than metals. If you have more resources you can choose from low melting temperature metals like: lead, tin, bismuth and their eutectic alloys. You will have to melt them, however, they will cost about ten times less than this.
Electromagnetic bombs
Electromagnetic bombs
Electromagnetic bombs
Electromagnetic bombs
Electromagnetic bombs
Electromagnetic bombs
Electromagnetic bombs
Electromagnetic bombs
The injection of that much electrical power must have heated the metal up considerably, did it not? I thought the idea was to extract heat, not inject more of it into the system.
Not really, because the voltage is low and resistance of the metal is small. Maximum applied current was 1000 amperes using voltage of around 1 V, making total power of ~ 1000 W. Some parts of electrical connections were getting warm, though.
I want to stick my hand in it! A hand has so much more resistance than the non-toxic GaInSn metal that the current will harmlessly flow around.
At 1 volt it would also have a hard time actually breaking past the skin layer on your hand.
Wow.. just excellent!
I am compelled to say this is on the cusp of where science meets art.
I am building a theory around this being the queens chamber in the great pyramid of Egypt.
do this in normal air with tens of millions of volts and you can go REALLY fast.
MAGIC
Can v x B electric field produce static differential charge concentration in solid conductor?
Sure but it's kind of niche, unless you own a reactor🤣
Besides nuclear enginneering there are also uses of electromagnetic machines in metallurgy. Pumping/stirring metal with coils and magnets.
Doesn't your metal get hot at that amperage
The current results from the macro flow of the liquid rather than just charge moving through it I think
Not really. The wires have more ressitance than liquid metal part of circuit so only the cables got warm. And even that happened only at highest amperage.
@@MHDTechnologyLaboratory oh so, in the video you were only running at low power?...
Not really. Some clips are at 1000 amperes, some are at 500. After 1000 ampere runs we let cables cool down.
Please help me.
I want liguid gold from lead.
Aren't most liquids that conduct electricity very distructive to other components? Galium infuses into pretty much everything and salt water will corrode most metals.
You can use graphite electrodes. No galvanic effect.
@@huguesmassin8903 But how do you build a heat exchanger that can survive Gallium?
It is possible to generate a current without directly contacting the conductive liquid with electrodes. Imagine the electrodes are covered with an insulating layer, and your working fluid is saltwater. When a high voltage is applied to the electrodes, the ions in the water are slowly attracted by the electrodes depending on their charge. During this process, the magnetic field deflects the ions, creating the effect shown in the video. The challenge here is that the distance between the electrodes needs to be small, and the voltage must occasionally fluctuate (as the ions might converge to an equilibrium state).
@@potisseslikitap7605 Yes, but there isn’t really a cheap or common insulating material that doesn’t get eaten away by mercury or gallium?
Awesome 😎👍 😊
Fantastic!
Cool
can you make a fountain?
Sure, why not.
Could an advanced craft use this tech without magnets by using earth’s magnetic fields?
Yes, it's usable, but since the Earth's magnetic field is weak, you need to pass very high currents.