Re: What would the end velocity be if...?

On Feb 20, 7:17=A0am, thro...@[EMAIL PROTECTED]
 (Wayne Throop) wrote:
> : Robert Israel <isr...@[EMAIL PROTECTED]
>
> : At 100 g ( 980 m/sec^2), to reach lightspeed (3*10^8 m/sec)
> : would take about 3.06*10^5 sec (ignoring relativity, of course)
> : or 85 hours. =A0The accelerator would have to be about 4.59*10^13 m
long=
,
> : or 307 AU, extending into the inner Oort cloud.
>
> Which oddly enough (unix "units" confirms for me), is about a hundredth
> of a year. =A0Which one would expect right off the bat if one happens
> to remember that 1g is about 1c/yr. =A0So, from my perspective, I would
> say to myself, 100g gives you lightspeed in a hundredth of a year,
> or three or four days. =A0Arbitrarily saying a tenth lightspeed is below
> what's needed for significant relativistic effects, that means it takes
> you something like 8 hours at 100g before you get significant effects.
> Very handwavy and imprecise, but gives you the general ballpark with
> minimal calculation.
>
> =A0( Though doing the calculation to yield "bam, zoom, to the inner
> =A0 =A0Oord cloud, Alice" is nifty... )
>
> =A0 =A0 "He wasn't an astronaut, he was a sitcom actor.
> =A0 =A0 =A0And he was only using space travel as a metaphor
> =A0 =A0 =A0for beating his wife."
>
> =A0 =A0 =A0 =A0 =A0 =A0--- Philip J. Fry
>
> Wayne Throop =A0 thro...@[EMAIL PROTECTED]
 =A0http://sheol.org/throopw

Where is the 'boundary' between Newton and Einstein?
What percentage of light 'speed'?