Hi all, I've just been thinking about something today which I freely admit I've not got the knowledge to actually comprehend at this time (my physics studies don't start until September!) and so it might actually belong in engineering or it might just be a load of nonsense that I've gotten wrong! If I were to set up an apparatus and attach a little model spaceship to it, which extended around, say 10m from the apparatus. Could I then, given the correct amount of energy input, rotate the apparatus at such a speed whereby the little model spaceship could achieve a velocity close to c.. and if so, would we start seeing relativistic effects occurring around the spaceship and apparatus as well? So you're not actually achieving such speeds through direct velocity sending something in a straight line, but through the inertial effect on an extended body from the apparatus.. would that lower the energy demands of reaching such velocity if the extended body were constructed as to be able to withstand the rigours of such speeds?