Question: This question may be a little irrelevant but how close are we to lightsaber technology?

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  1. Perhaps the closest things we have today are plasma cutters, but they are nowhere near as cool as light sabers. They are usually used for cutting through big plates of metal. They use electricity shooting through a stream of gas to create plasma which blasts away through the metal BUT it can only do this at very short distances, NOTHING like what you see in the movies.

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  2. To add, there are very powerful lasers that can function like a light saber.
    The only part that we can’t figure out is how to make a saber out of it! For something to be so powerful, it’d need a pretty big energy supply (or we just haven’t found the right crystals!). And then there’s the problem of how to make it only work up to a certain distance away from the saber.

    Although it’s not my field, I’m sure we have people working on it! Watch this space…

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  3. Great answer, guys!

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  4. This blog Physics.org has a nice post about light saber technology and the limitations which Yashar and Carina described.

    https://www.physics.org/article-questions.asp?id=59

    When it happens (because it will one day int he future!) I would love to be able to use a light saber and make those cool sound effects too! 🙂

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