# Could I build a plasma laser from this?

#### Dapperwolf

Homework Statement: So if I were to take Jew strong very strong magnets and place them repelling one another in a vacuum would I be able to create plasma and could I create a laser that can shoot it out?
Homework Equations: sorry new to this

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#### mfb

Mentor
No. Why would you expect so?

If you just put magnets somewhere in a fixed position and nothing else then nothing happens. You can see this e.g. from conservation of energy.

#### Delta2

Homework Helper
Gold Member
Plasma is one of the four fundamental states of matter (the other three being gas,liquid,solid) and thus I doubt that it can be created from vacuum. Current technology creates plasma by applying strong electromagnetic field to various types of gases. Maybe you ll find the entry on plasma in Wikipedia informative and usefull:

#### marcusl

Gold Member
Since this is a homework problem, you need to post it in the appropriate Homework forum and fill out the form showing your work.

#### phinds

Gold Member
Homework Statement: So if I were to take Jew strong very strong magnets and place them repelling one another in a vacuum would I be able to create plasma and could I create a laser that can shoot it out?
Homework Equations: sorry new to this
What is jew strong? I assume you didn't mean a racial slur, so what did you mean?

#### DaveC426913

Gold Member
What is jew strong? I assume you didn't mean a racial slur, so what did you mean?
...take two strong (very strong) magnets...

#### mfb

Mentor
Since this is a homework problem, you need to post it in the appropriate Homework forum and fill out the form showing your work.
I moved it out of the homework forum because I'm quite sure this was not a homework problem.

#### Dapperwolf

sorry my phone mic is stupid

#### Dapperwolf

Yes two strong magnets in a vacuum, would it create plasma?
Sorry, very new to this site and thanks for moving my post

#### phinds

Gold Member
Yes two strong magnets in a vacuum, would it create plasma?
You have already been answered. No. See post #2. Plasma is matter. Magnets are not going to create matter from nothing.

What is that video supposed to show?

#### Dapperwolf

right, so then two strong diamagnetic magnets in a vacuum filled with hydrogen while being cooled to 273.15 kelvin

#### phinds

Gold Member
a vacuum filled with hydrogen
What the *&\$(&#) ??? A vacuum AND filled with hydrogen???. Please make up your mind what you are talking about !

#### Dapperwolf

to make plasma you need a gas so I gave you one, plus I want to know if under very low temperatures the hydrogen when becomes a super fluid what will actually happen

#### Ibix

to make plasma you need a gas so I gave you one
But you also said it was a vacuum.
I want to know if under very low temperatures the hydrogen when becomes a super fluid what will actually happen
273K isn't a particularly low temperature - it's about the melting point of ice. And mfb's answer in post #2 stands as far as I can see. Why would you expect this to lase?

#### mfb

Mentor
You can't just randomly put together some stuff and then expect whatever you want to be produced. That's not how the real world works.
As this thread isn't going to be helpful to anyone I closed it.

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