vic wrote: ↑
Tue Oct 31, 2017 11:26 pm
maydijo wrote: ↑
Tue Oct 31, 2017 9:58 pm
Damn, it's going to be hard to claim that package! My 8 year old is working on a time machine, I'll let you know when he's got it finished so you can pick up your parcel.
Sorry, but a mere time machine won't do. It's got to be a TARDIS - that Relative Dimension in Space part is essential, since Rancho Mirage is 150 miles from me.
That can possibly be solved with the time part. If a vehicle were to travel in time only it would presumably remain in the same location in an inertial frame of reference (that is, one that is stationary or moving at constant translational velocity). Our planet is not an inertial frame because orbiting a larger body requires continuous radial acceleration. So, adopting the sun as a reference (which it's not, because it's under the gravitational influence of our galaxy, which is in turn affected by the local group... but, hey, let's be realistic!), if you time-traveled for 6 months you would find the earth had moved to the far side of the sun and you'd be 180 million miles away from the nearest Denny's.
But the corollary is that maybe you can exploit that. The earth's surface moves at several hundred miles per hour (depending on latitude) as it spins on its own acis. If you start due east or west of your destination you could time your arrival so your destination is under you when you arrive (although it might be a bumpy landing... or an unpleasant interment).
That's all very Newtonian; relativistically who knows? It's all very wibbly-wobbly with the timey-wimey stuff. Hmm... I wonder whether the R for "relative" refers to fancy physics? - I simply assumed at a young age that it was a reference to the TARDIS being smaller on the outside (size is relative, y'know) but relativity would be a better fit.
That's why Foggy doesn't let just anybody take his TARDIS - tricky friend, time travel.