Magnetohydrodynamic Water Propulsion System

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N30

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Magnetohydrodynamic Water Propulsion System
« on: September 18, 2018, 07:27:34 PM »
Magnetohydrodynamic drive systems are a rarely heard of.

They employ two electrodes in conductive water and either a permanent or electrically induced magnetic field.

The conductivity creates a charged area of water that the magnetic field pushes on, thus thrust is produced.

Magnets can push water?

Well of course, water IS diamagnetic!

I just thought this was a cool tidbit of SCIENCE to contrast the regularly scheduled indoctrination.
« Last Edit: September 18, 2018, 07:30:07 PM by N30 »

Re: Magnetohydrodynamic Water Propulsion System
« Reply #1 on: September 18, 2018, 08:04:23 PM »
Magnetohydrodynamic drive systems are a rarely heard of.

That's because they don't work very well.

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I just thought this was a cool tidbit of SCIENCE to contrast the regularly scheduled indoctrination.

Thanks, I guess.

I presume you're going to resume your usual attempts at indoctrination now. There is really no need, you know; it isn't very effective, either.
"Everyone is entitled to his own opinion, but not to his own facts." - Daniel Patrick Moynihan

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rabinoz

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Re: Magnetohydrodynamic Water Propulsion System
« Reply #2 on: September 18, 2018, 08:11:28 PM »
Magnetohydrodynamic drive systems are a rarely heard of.
True but they are certainly genuine.
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Yamato 1 is a ship built in the early 1990s by Mitsubishi Heavy Industries, Ltd at Wadasaki-cho Hyogo-ku, Kobe. She uses magnetohydrodynamic drives (MHDs) driven by liquid helium-cooled superconductors and can travel at 15 km/h (8 knots).

Yamato-1 was the first working prototype of its kind. She was completed in Japan in 1991, by the Ship & Ocean Foundation (later known as the Ocean Policy Research Foundation). The ship, which includes two MHD thrusters, which have no moving parts, was first successfully operated in Kobe harbour in June 1992.

An MHD works by applying a magnetic field to an electrically conducting fluid. The electrically conducting fluid used in the MHD thrusters of Yamato-1 is seawater.

In the 1990s, Mitsubishi built several prototypes of ships propelled by MHD systems. Despite projected higher speeds, these ships were only able to reach speeds of 15 km/h.

Today Yamato-1 is on display at the Kobe Maritime Museum.

Quote from: N30
They employ two electrodes in conductive water and either a permanent or electrically induced magnetic field that the other magnetic field "pushes on".

The conductivity creates a charged area of water that the magnetic field pushes on, thus thrust is produced.
It is not "a charged area of water that the magnetic field pushes on" but the current through that conductive water (sea-water) produces a magnetic field.

Quote from: N30
Magnets can push water?

Well of course, water IS diamagnetic!
Water is diamagnetic but only weakly so. Have a look at Water Structure and Science, Magnetic and Electric Effects on Water.

So small water-filled sacs, eg ;D frogs ;D1, can be "levitated" in a strong magnetic field.
NETHERLANDS: BRITISH & DUTCH SCIENTISTS MAKE FROG FLOAT IN MID-AIR, AP Archive

Quote from: N30
I just thought this was a cool tidbit of SCIENCE to contrast the regularly scheduled indoctrination.
So you admit to presenting your "regularly scheduled indoctrination" to the less well read here.


1 No frogs were harmed in the course of this experiments - just a little disoriented.

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markjo

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Re: Magnetohydrodynamic Water Propulsion System
« Reply #3 on: September 19, 2018, 12:18:32 PM »
From what I've heard, the technology is much better suited for spacecraft propulsion than for water propulsion.  Just substitute plasma for the water and you get a very high specific impulse engine.
Science is what happens when preconception meets verification.
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sokarul

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Re: Magnetohydrodynamic Water Propulsion System
« Reply #4 on: September 19, 2018, 02:22:39 PM »
Magnetohydrodynamic drive systems are a rarely heard of.

They employ two electrodes in conductive water and either a permanent or electrically induced magnetic field.

The conductivity creates a charged area of water that the magnetic field pushes on, thus thrust is produced.

Magnets can push water?

Well of course, water IS diamagnetic!

I just thought this was a cool tidbit of SCIENCE to contrast the regularly scheduled indoctrination.

With this thread and your perpetual energy thread I now have to ask, can you stop posting anything science related?
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N30

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Re: Magnetohydrodynamic Water Propulsion System
« Reply #5 on: September 20, 2018, 09:33:36 AM »
Don't forget the Hydrogen Generation Bubbler I was talking about too!

Actually a by product of magnetohydrodynamic drives is hydrogen and oxygen through electrolysis.

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sokarul

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Re: Magnetohydrodynamic Water Propulsion System
« Reply #6 on: September 20, 2018, 10:12:42 AM »
Ok. Now explain why you think a battery can output AC?
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