Saturday, August 27, 2016

The real Time Travel problem that Skiffy has never resolved?


"What", you ask, "how can Space be a problem for time travel?"

it's pretty straightforward.

the Earth rotates about it's axis.  rotational velocity at the equator is over 1,000mph.  of course, this rotational velocity will decrease as you approach the poles, but even if you were time traveling from a position at one of the poles,

... there are larger issues.

 the Earth orbits the sun at approximately 66,600mph.  if you want to travel one day into the past, you have to also go 1,598,400 miles back along Earth's orbit around the Sun.

... there are larger issues.

speaking of the Sun, it's also moving ( ruh roh ).  well gosh bob, how fast is the Sun moving?  Wikipedia says the Sun is moving ~220 kilometers ... per second.  which is 792,000 kph.  which, for us hick 'Muricans, is a little under a half million miles per hour at 492,126 mph.  if you want to travel one year into the past, you have to go 4,311,023,760 miles back along the Sun's orbit around the core of the Milky Way. did i mention the Milky Way?  oh crap,

... there are larger issues.

  the Milky Way has a velocity relative to the Cosmic Microwave Background of 552 kms.  which is 1,987,200 kph or 1,234,789 mph.   if you travel ten years into the past, the Milky Way has traveled  108,167,516,400 miles.  if you go back 600 years you are more than a Light Year away from where we are today.  yes, that's right, Columbus sailed the ocean blue 524 years ago and almost a Light Year from where we are today.

suddenly, time travel back to the age of the dinosaurs, billions of years ago, seems kind of absurd.  given that this would also involve translating yourself across millions of Light Years of space, orienting yourself to the Milky Way, to the orbital position of the Sun, to the orbital position of the Earth AND referenced properly to the angular position relative to the Earth's core.

otherwise, you'll be sucking the vacuum of space.  which doesn't really give you much opportunity to play with dinosaurs.

obviously, the same Spacial problem applies to any time travel to the future as well.  which points up the absurdity of HG Wells, "The Time Machine".

ps - there is, of course, one way to solve most of these problems:
rehabilitate the Ptolemiac Model

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