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Thread: Geek Creates DIY Pulse Laser Pistol

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by molten_dragon View Post
    Look how far guns have come since they were invented. I guarantee you we'll be using laser guns at some point.
    Just don't fire the laser gun in a dusty or misty environment or everyone in eyesight will go blind!
    He touched her over her bra and underpants, she says, and guided her hand to touch him over his underwear
    Quote Originally Posted by Lutherf View Post
    We’ll say what? Something like “nothing happened” ... Yeah, we might say something like that.

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by Viktyr Korimir View Post
    Geek creates DIY pulse laser pistol that can burn plastic and melt foam

    It's not enough to burn a man down where he stands or even to hole him, but it is a start.

    Even if it isn't a practical weapon yet, that is frickin' COOL.

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by Goshin View Post
    Even if it isn't a practical weapon yet, that is frickin' COOL.
    That was never in question.
    He touched her over her bra and underpants, she says, and guided her hand to touch him over his underwear
    Quote Originally Posted by Lutherf View Post
    We’ll say what? Something like “nothing happened” ... Yeah, we might say something like that.

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by American View Post
    Actually that's not true, hydrogen fuel cell even if small enough wouldn't give you more power than a battery.
    what? what do you mean?

    a batteries power is restricted by it's size, while a hydrogen fuel sell is not. Especially when it's fuel that can be ultra compressed into plasma. There are so many more possibilities for hydrogen powered cells and weapons.In a plasma state Hydrogen can be manipulated with magnets giving millions of more possibilities.
    Last edited by celticwar17; 03-24-11 at 04:04 PM.

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    Re: Geek Creates DIY Pulse Laser Pistol

    Saw a segment on a show where someone had a homemade rail gun. That thing was serious. You could tell that its creator was a little scared of it. Would be heavy and cumbersome as man portable, with a limited number of shots available. But big kinetic energy.

    We'll probably see something like that as a real weapon first. Because it avoids all the drawbacks of coherent light weapons mentioned above.

    Still awesome though!( the laser)
    Anyone wondering what I'm talking about start here:
    The Psychology of Persuasion

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by celticwar17 View Post
    what? what do you mean?

    a batteries power is restricted by it's size, while a hydrogen fuel sell is not. Especially when it's fuel that can be ultra compressed into plasma. There are so many more possibilities for hydrogen powered cells and weapons.In a plasma state Hydrogen can be manipulated with magnets giving millions of more possibilities.
    Carrying around an object containing 10 million PSI of hydrogen.

    This is a fantastic plan!
    He touched her over her bra and underpants, she says, and guided her hand to touch him over his underwear
    Quote Originally Posted by Lutherf View Post
    We’ll say what? Something like “nothing happened” ... Yeah, we might say something like that.

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by Deuce View Post
    Carrying around an object containing 10 million PSI of hydrogen.

    This is a fantastic plan!
    No, no, encourage it.

    Today's special: Free mushroom cloud with every over-eager DIYer!
    I'm already gearing up for Finger Vote 2014.

    Just for reference, means my post was a giant steaming pile of sarcasm.

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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by American View Post
    Actually that's not true, hydrogen fuel cell even if small enough wouldn't give you more power than a battery.
    I guess you can see into the future?

    Hydrogen and hydrogen type fuel cells are in the future, no way to tell yet.
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    Benjii likes the protests...he'd be largely irrelevant without them. So he needs to speak where he knows there will be protests against him and that makes him responsible for the protests.
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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by Deuce View Post
    Carrying around an object containing 10 million PSI of hydrogen.

    This is a fantastic plan!
    That is not what he said or implied.
    Quote Originally Posted by Moot View Post
    Benjii likes the protests...he'd be largely irrelevant without them. So he needs to speak where he knows there will be protests against him and that makes him responsible for the protests.
    Quote Originally Posted by Absentglare View Post
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    Re: Geek Creates DIY Pulse Laser Pistol

    Quote Originally Posted by celticwar17 View Post
    what? what do you mean?

    a batteries power is restricted by it's size, while a hydrogen fuel sell is not. Especially when it's fuel that can be ultra compressed into plasma. There are so many more possibilities for hydrogen powered cells and weapons.In a plasma state Hydrogen can be manipulated with magnets giving millions of more possibilities.
    You're wrong about a few important things here.

    While you are somewhat correct in that the amount of energy a fuel cell can produce is not dependent on size, the rate at which it can produce energy (i.e. the amount of power it can produce) is dependent on size. For an energy weapon, the power that an energy source can generate is just as important, if not more so, than the amount of energy it can generate. Let's say it takes 1000 joules of energy to fire one laser shot. If your energy source only produces 1 watt of power, then it will take 1000 seconds for it to charge up for the next shot.

    Now, a hydrogen fuel cell (or more specifically a PEM fuel cell) is a fairly thin plate that is maybe an inch or two on each side. Here's a picture of one.



    The actual fuel cell part is the dark grey plate in between the red and black end plates. That fuel cell can produce 1 watt of power. That's all it can produce. You can't make it produce more by flowing more hydrogen through, that's all you get. Now one watt of power ain't much. So to make more power, you wire up several fuel cells either in series or parallel (or most likely a combination of the two to up both the voltage and amperage). Here's a picture of that.



    That's basically just 10 fuel cells stacked up together, and it produces 10 watts. See what I'm getting at?

    You're also wrong about storing hydrogen. Compressing it will not make it turn into a plasma. Compressing (and cooling) hydrogen will make it turn into a liquid, and eventually a metallic solid (though we don't have the ability to actually make metallic hydrogen). To make a plasma, you actually need to do the exact opposite, heat the material to an extremely high temperature (tens of thousands of degrees kelvin, minimum). And barring unusual circumstances (such as the cores of stars) plasmas usually have a very low density, so a plasma would be a terrible way to store hydrogen. You'd be much better off with just tanks of compressed or liquid hydrogen.

    And while magnetic fields can indeed manipulate plasmas, it takes extremely powerful magnetic fields to do so, which require large electromagnets to produce, which in turn require a lot of power to operate.

    So basically, as far as weapons go, at the moment, fuel cells would be quite inferior to batteries. Both batteries and fuel cells though are currently incapable of providing the kind of power that an energy weapon capable of killing a person would require. Too really make energy weapons a reality, we need devices with much higher electrical energy storage density than is currently available. It's being worked on though, since such a technology would have extremely wide ranging benefits. Imagine a cell phone battery that could power your cell phone for years!
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