As for Newtons laws: EVERY motion is FORCE-DRIVEN, but you can get the "force" from the reaction-law.
An airplane (propellor kind) "pulls" air through the propellor, thus pushing (air) mass behind and (reaction) thus pushing itself forward.
A jet-plane usually pushes its own exhaust gasses backward, thus (reaction from engine on plane) pushing itself forward.
Rockets do exactly the same: push back the fuel (well, first combust it into a fast-moving = hot gass) and thus reacting forward itself.
Here comes Pitr's invention:
Pitr will drive the rocket on "reactin mass", not on "fuel and combustion gass mass" ... THIS IS A NEW CONCEPT;
I guess the "comics space physics" involved here think along this line:
a) traditional reaction (pushing backward mass) yields energy
b) energy 'equalls' mass (there's Einsteins c-square factor)
c) now let's "push back" THIS MASS ALSO, and in a circular way: pushing the mass of every energy gained, pushing, pushing: THIS should yield a perpetuum mobile.
OK, it's strip-comic physics, traditional physics "forbids" a PM, but neither strip comics nor Pitr are "traditional". |