16

Usually we see lightsabers cutting through metals like butter, with a few notable exceptions. And we know it can cut through flesh while cauterizing the wound. But what about material with a different resistance to heat, like a wet log? Could a lightsaber cut a tree down with a slice or by just thrusting it into the wood, as trees don't really "melt"? What would the physics be of doing something like this?

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    The physics are best described as, "Yeah, that'd be AWESOME!" – Jeff Feb 27 '12 at 15:57
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    At some point, everything melts. – bitmask Feb 27 '12 at 16:23
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    ...wouldn't wood incinerate before melting? – Bart Silverstrim Feb 27 '12 at 16:34
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    Busy visualizing a woodchuck with a lightsaber. – Major Stackings Feb 27 '12 at 19:47
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    And how much wood would a lightsaber light if a lightsaber could light wood? – Paul D. Waite Oct 27 '16 at 23:34
18

In Star Wars: The Force Awakens we see both the antagonist Kylo Ren (using his funky red saber) and protagonist Rey (using Luke's lightsaber) cutting through trees with gay abandon. They seem to present no more impediment to the blade than a vibro-knife through butter.

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  • I’m sort of surprised this question got as many upvotes as it did, but this is a nice answer nonetheless. – Adamant Oct 27 '16 at 23:20
  • @Adamant - The question is ok-ish. The previous answer is definitely lacking. – Valorum Oct 27 '16 at 23:32
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    There should at least be a badge for first use of the phrase “gay abandon” on the site. Definitely feels like something I would have said at some point. – Paul D. Waite Oct 27 '16 at 23:36
  • Also what a sci fi simile! "like a vibro-knife through butter". Something you see every day really 😉 – DannyMcG Jul 17 '17 at 8:16
21

Yes, several of the books describe Luke using his lightsaber to cut through jungles.

It also follows physics. A wet log doesn't burn easily, but an oxy-Acetylene torch will go through it in no time.

  • Err, but a light saber isn't hot. You can't really compare it to a oxy-Acetylene torch. – user606723 Feb 27 '12 at 17:35
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    Actually it takes quite some time to burn through wood with a torch. A laser on the other hand makes pretty quick work of it. – Chad Feb 27 '12 at 18:01
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    Lightsabers have to be hot if they cauterize as they slice... – Bart Silverstrim Feb 27 '12 at 20:29
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    @BartSilverstrim - Actually the heat up when the come in contact with matter. – Chad Feb 28 '12 at 14:22
  • In which books? – Valorum Jul 18 '17 at 16:28

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