Talk:Veritux/@comment-209.65.56.40-20141103022018/@comment-95.82.233.162-20141103114851

Weight and mass are different things. Weight is basically how hard the gravitation pulls that objects. Weight is measured in Neutons. Objects in space have no weight since there is no gravitation to pull them.

Mass is the innate parametre of an object. It defines the inertia the object has. Mass is very much present in space.

Now, for practical things. When you hit something with a sword, you put some energy swinging it and then use its energy in form of mass*speed^2 (if I am not mistacen), on hit the sword transefrs that energy to the target, crushing and pushing it. So, as you see, weight has nothing to do with damage (unless the sword falls on you from some height, on a planet), its all mass and speed.

The description of the weapon is partly correct. Yep, you won't be able to rise such sword on planet surface and you can swing it around in space. But you would be doing it very sluggishly, since its simply hard to overcome its inertial mass and move it.

P.S. Good they are teaching physics in Russian schools.