Re: Speed limit at C a misconception?



Timo Nieminen <timo@xxxxxxxxxxxxxxxxx> wrote in
Pine.LNX.4.50.0508231132350.4362-100000@localhost:">news:Pine.LNX.4.50.0508231132350.4362-100000@localhost:

> On Tue, 23 Aug 2005, Skywise wrote:
>
>> My understanding of the phrase "nothing can go faster than light"
>> applies to material objects, ie spaceships, baseballs, and protons.
>>
>> If that is correct, then the phrase "nothing can go faster than light
>> is a popular misconception" is false.
>>
>> Right?
>
> The "misconception" part was the inclusion of nonmaterial objects (but see
> below) in the "nothing" above. The point being the reaction that FTL phase
> or group speeds elicit: "SR is falsified!" or "Isn't that prohibited by
> SR?"
>
> A complication exists, however, since one might not wish to call
> information, energy, momentum, and angular momentum "material objects".
> The word "thing" is such a nicely imprecise term!
>
> Just from responses I've seen from others, not all people share your
> understanding of the phrase above.

I think the only quesiton I have left is, "is my understanding correct"?

Brian
--
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