Board Thread:Fun and Games/@comment-32865299-20171104173335/@comment-33185350-20171125040832

Nerdy Explanation:

Light sabers are light, and light (electromagnetic waves) is light (nearly massless). Force equals mass times acceleration, according to the venerable Sir Isaac Newton. Assume Aragorn and Luke have comparable strength. All Luke has to do is move his lightsaber, which is very light. It has almost no mass, and so the same force will provide more acceleration. This is why he can swing it very, very fast. Aragorn’s sword is made out of metal, which is heavier than light. The same force will make it move much slower than Luke’s lightsaber. Of course Aragorn’s body is even heavier than his sword, and it will be extremely difficult for him to accelerate his body faster than Luke can accelerate his lightsaber.

Translation:

It is practically impossible to dodge a lightsaber if you are within an arm’s reach.