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magnetic poles

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Pakabol
(@pakabol)
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Joined: 5 years ago
Posts: 232
Topic starter  

well ive been having a hard time sleeping for a week or so. my mind just wont shut off and ive been watching shows about space and space travel but im wondering if any of you might have a bit of insight into a question i have.

why dont we use magnetic pole as a power source for a space ship. its not uncommon knowledge that we use magnetic poles already in rail guns for example. i know the earth only has 2 magnetic poles. the sun only has two but reach they out at many different spots on the surface and that are much lager, more power and expand much farther out in to are solar system

what would it really take to adapt the tech of today to harness that all that free power. (does any on know if we are working on this or insight)

why aren't we using are magnetic pole to reach 0 emission 0 carbon foot print free power 


   
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(@pugwash)
Sorcerers' Apprentice
Joined: 5 years ago
Posts: 923
 

Magnetism is one of the weakest forces in the Universe and extremely localised. The Earth's magnetic field is barely capable of moving the needle pointer of a compass, an object of exceedingly small mass, at the surface of the planet. The Earth's solid core of nickel/iron, swimming in a sea of molten nickel/iron is about 6000 km below your feet and the magnetic flux being generated by this core depletes at a logarithmic rate the further away you get from the core. The Earths magnetic field is powerful enough to deflect Solar wind, which has negligible or no mass at all, and we should be grateful for that, just ask our guru @dronebot-workshop what the people of Montreal think about that. As they have already experienced what happens when there is a glitch in the natural protection afforded by this magnetic flux.

Maglev trains and rail guns work because of powerful localised electromagnets, therefore totally unsuitable for interplanetary travel, possibly with one exception. ? But it is a secret!

As my countryman and hero Isaac Newton discovered, an object will move with a constant velocity and direction until another external force is applied to it.

So, it might be worth using your current insomnia to figure out how to make a vertical rail gun that extends past or at least propels an object fast enough to negate and/or overcome Earth's gravity. This object will then travel through inter-planetary, inter-stellar and finally intergalactic space forever or at least until it hits something. ? 

Just bear in mind "The Law of Conservation of Energy", which states "energy can neither be created nor destroyed". Not forgetting Hubble's constant about 72km per Megaparsec per second (this is the rate at which space is expanding).

With all the information above, you should be well on your way to a Physics Nobel Prize (remember I get 50% of the cash).

Another small aside, an engineer/scientist once calculated how much energy would actually be required to accelerate the USS Enterprise to Warp 10, and it was more than all the energy combined that has ever been produced on Earth by mankind.

Conclusion: You don't get something for nothing!


   
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(@pugwash)
Sorcerers' Apprentice
Joined: 5 years ago
Posts: 923
 

@pakabol

And, if you were wondering why this would interest me, this is part of my scientific bookshelf content:

IMG 4234

and this is what I am currently reading:

IMG 4236

   
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Robo Pi
(@robo-pi)
Robotics Engineer
Joined: 5 years ago
Posts: 1669
 
Posted by: @pakabol

why dont we use magnetic pole as a power source for a space ship

How do you get power from magnetic poles?

Posted by: @pakabol

its not uncommon knowledge that we use magnetic poles already in rail guns for example

They aren't using magnetic poles as a power source.

Posted by: @pakabol

what would it really take to adapt the tech of today to harness that all that free power.

What free power?   Can you explain how we could get free power from magnetic poles?

Don't you think that if this was a known scientific principle we'd already be doing it?

DroneBot Workshop Robotics Engineer
James


   
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(@dronebot-workshop)
Workshop Guru Admin
Joined: 5 years ago
Posts: 1104
 

The problem I see with this "free power" is that you would need to expend energy to get it.

The Earth is, in this perspective, a big magnet. And you can get electricity out of any magnet with a coil of wire. But you need to move either the magnet or coil to do it.

So whatever you used to collect this "free energy" would need to move through the magnetic field. And since it needs to move it would need to expend energy to do it.  Probably at least as much energy as you would collect in the coil.

Or am I missing something?

Posted by: @pugwash

just ask our guru @dronebot-workshop what the people of Montreal think about that. As they have already experienced what happens when there is a glitch in the natural protection afforded by this magnetic flux.

Yes, the entire province got blacked out by a solar flare in 1989. I was actually living in Edmonton at the time, but my parents were here in Montreal and I remember it well.  Not a good day to be riding the subway!

Bill

"Never trust a computer you can’t throw out a window." — Steve Wozniak


   
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(@pugwash)
Sorcerers' Apprentice
Joined: 5 years ago
Posts: 923
 

@dronebot-workshop

Yes, the entire province got blacked out by a solar flare in 1989. I was actually living in Edmonton at the time, but my parents were here in Montreal and I remember it well.  Not a good day to be riding the subway!

If I remember correctly it snowballed out of Quebec Province and affected most of continental NE America! But Quebec was the first place where the power plants suffered an emergency shutdown. The epicentre so to say!


   
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(@dronebot-workshop)
Workshop Guru Admin
Joined: 5 years ago
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@pugwash

We also export a lot of electricity to the US, when we get a major power failure a good part of New York City goes down. 

We have an abundance of it here due to the huge hydroelectric dams up north, as a result, we also have the cheapest electricity in North America. But because of that, almost everything is electric here, including our heating. So when we lose power we are in a big mess.

"Never trust a computer you can’t throw out a window." — Steve Wozniak


   
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Pakabol
(@pakabol)
Member
Joined: 5 years ago
Posts: 232
Topic starter  

well my thought was more on using an array of magnet and using it to repulse on another it wouldn't be all that strong but the build up of speed over time. using photons in a solar sail is very weak to but over time it builds up 


   
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Spyder
(@spyder)
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Posted by: @dronebot-workshop

The Earth is, in this perspective, a big magnet. And you can get electricity out of any magnet with a coil of wire.

Heh, yea. Are you familiar with the STS-75 "tether incident" ?

I remember it quite clearly. Listening to Art Bell with frequent guest Richard Hoagland describing NASA's plans, and thinking "What a stupid idea. They're planning to orbit a 20KM piece of wire around the biggest magnet on the planet, namely, the planet itself. I wonder how much power it will generate before the space shuttle explodes"

But, these are literal rocket scientists. They must know what they're doing, and they obviously must know some secrets about electricity that I've been previously unaware of. So of course nothing bad will happen

So they orbited the Earth, at a distance of about 300 KM, and launched the satellite, attached to 20KM of conductive wire (can anybody guess what's about to happen here ?)

A feedback of a couple thousand volts was generated thru the wire and conducted down to the shuttle itself, frying the wire and freeing the satellite (luckily) from the shuttle

(ignore the floaty things traveling around the wire, which seem to be attracted to it. NASA says it's just "debris", but, who knows what type of spatial flying "stuff" was illuminated by the neon type glow of the tether)

And here's NASA's version of the story, saying "they expected this"

https://www-spof.gsfc.nasa.gov/Education/wtether.html

I find it hard to believe that they expected this, and did it anyway, cuz... wow


   
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