Hi All, So I'm gonna start off by reiterating something I read earlier that really got me thinking, someone asked the question 'What would happen if you fired a gun whilst you were on a train moving at the same speed as a bullet' and the answer was as follows, "Every body persists in its state of rest or of uniform motion in a straight line unless it is compelled to change that state by forces impressed on it." (Newtons first law) what this means for the bullet is that, much like if u through a ball up in the air it would come straight back down not fly to the back of the Train at 1000 Mph acting exactly the same as it would if you were not moving only being effected by you and gravity, the bullet would act as it would if you were not moving too it would still leave the gun traveling at 1000 mph. Now here is the interesting part, if you were moving already at 1000 mph and you fired the gun and the bullet began to move at an additional 1000 mph relative to you and the train, then relative to the ground the bullet would be moving at 2000 mph. Then I got to thinking about scaling it up to something bigger, for example, if I were to have a rocket that could house two other rockets, like Russian dolls, that could propel themselves progressively faster as their size and weight decreases, now lets work this out from things we know, rockets that leave our atmosphere reach up to 25,000 Mph so lets say once this speed is achieved we initiate the launch of the next rocket from within, lets say to the reduced size and weight, this rocket can reach 30,000 Mph on its own, launching within the other rocket would give the second rocket a starting speed of 25,000 Mph before it has even took off, so it fires out and reaches a speed of 55,000 Mph then the next rocket, that's max speed would be further still, lets say 40,000 Mph due to its smaller size and weight, through this method it seems to me it would be completely possible to reach nearly 100,000 Mph. Now if you scaled this up further still then you could plausibly reach any speed you wanted to by just working out how many ships you would need at at what speed each of them would need to project themselves, and because this would all be happening in space these speeds could be easily sustained for long periods of time, making it a plausible and effective means of space travel. Well guys there is my idea, poke some holes in it if you can because I really hope I haven't just figured out a real way of reaching these speeds, I'm far to dumb for that haha Thanks for reading