Re: Twin Paradox a blasphemy to Relativity

From: TomGee (lvlus_at_hotmail.com)
Date: 02/09/05 

Date: 8 Feb 2005 22:05:11 -0800

PD wrote:
> TomGee wrote:
> > Of course you can tell who is moving faster. In order for the ship
> to
> > leave Earth, it must move faster than the Earth is moving. In
order
> > for the ship to catch up with the Earth on its return to it, the
ship
> > must go faster than the Earth.
> > TomGee
>
> You're kidding, right?
>
> I throw an apple out of a moving car moving at 60 mph and it leaves
the
> car with a relative velocity of 5 mph.
>
>
You can throw an apple out of a car at 5mph but you cannot escape the
gravity of Earth at 5mph.
>
>
> Now, on the basis of that information, you tell me whether I threw it
> forward (so it's going faster than the car) or backward (so it's
going
> slower than the car).
>
>
Not the same at a rocketship having to go faster than the Earth in
order to escape its gravity. Your car is moving faster than the Earth
even if it's only going 5mph. The 5mph is IN ADDition to the speed of
the Earth since your car is moving at Earth speed when standing still.

>
>
> Timmy gets hit with the apple and so he picks up a rock and throws it
> at me in the moving car and it hits me in the nose with a relative
> velocity of 80 mph.
> Now, on the basis of that information, you tell me whether he threw
it
> forward (so it's going faster than the car) or backward (so it's
going
> slower than the car).
>
He has to throw it faster than the car is moving in order for it to
catch up with the car. Whether Tim threw it forward or backward is not
relevant in this experiment.

TomGee

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