Quoted By:
1_You can actually cool things using a laser by modifying the electron spin of atoms.
2_Force=Mass x Acceleration
Mass* of the combustible used by the rocket.
You bong should read how an Uniformly Accelerated Movement works.
If you are in the space and you throw something from your hand (ie a plastic fork) , you actually are making WORK (Work=force x distance). In the space there is no mass so there's no FRICTION. So you can move indifinitely by throwing mass (ie a plastic fork) from your point in space.
