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Time compression for warship crews, example Yeager



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Life on Carriers

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>From: Onno Meyer <Onno.Meyer@arbi.informatik.uni-oldenburg.de>
>Subject: Re: C. J. Cherryh List
>Date: Tue, 11 May 1993 17:04:37 +0200 (MET DST)
> > 	Not only that but The Fleet stands largely outside of time.
> > Being almost constantly on the move the time dilation of jump means
> > they live a very long time. Has anyone actually read Rimrunners and
> > counted the number of days that pass for Bet Yeager compared to a
> > year going by on Thule? For Stationers The War is a long, drawn out,
> > and sparodic thing. (A bit like Northern Ireland in our papers here)
> > Yet for The Fleet it is much more compressed. With this higher level of
> > intensity it would not be difficult for The Stationers to personify
> > them as archetypes.
If I counted right, 10 days pass for the year on Thule, unless there are some days that simply are not mentioned. There is a line about how strange the additional technicans assigned to Bets shift seem, and that after only one week on a new ship. Everything should have been strange. Further more, Bet claims 20 years of experience on AFRICA, and the ship was build around 2320 (the time of _Hellburner_) and she left the ship in 2352 (on Pell). This would indicate a time compression of 1,5:1 and not of 30:1 as in _Rimrunner_.

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>From: Lesley Grant <lgrant@maths.tcd.ie>
>Subject: cherryhlist
>Date: Wed, 12 May 93 10:01:23 BST
> >From: Onno Meyer <Onno.Meyer@arbi.informatik.uni-oldenburg.de>
 
 [on time compression on board ships]

> (...)
> Further more, Bet claims 20 years of experience on AFRICA, and the ship
> was build around 2320 (the time of _Hellburner_) and she left the
> ship in 2352 (on Pell). This would indicate a time compression of
> 1,5:1 and not of 30:1 as in _Rimrunner_.
Bet didn't join the _Africa_ in 2320, though. She was pressganged much later in the War, along with lots of other youngsters. Can anyone remember if a date is given for this? I think it would bring the time compression ratio up sharply. And how is Bet calculating that 20 years? If she's counting subjective time, she'd never get off the _Africa_ by 2352, (assuming she is taken around 2335-40). A warship would simply jump too often with each jump being 'really' 3-4 months. Her 20 years would last at least an objective century. She must be counting 20 'real' years, which would knock the date of her 'volunteering' back to 2332. This date, however, may be a little too early for the Fleet to need such tactics (only 12 years after _Hellburners_ -- would the EC still have been supportive at this time?). Another option, of course, is that warships jump 'faster' than normal ships, with less time lost. This would allow her a longer subjective time on board. Or perhaps the numbers just don't add up -- Bet 'appears' to be using a subjective timescale (she's 37, looks 37, claims 20 years experience, and was taken at 16), but such a timescale just doesn't fit into 'real' time, and would actaully extend far past the entire duration of the War.
			Lesley


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>Date:    Wed, 12 May 1993 16:02:51 -0400 (EDT)
>From:    NACHISON@SCSUD.CTSTATEU.EDU
>Subject: re Cherryhlist
 
>If I counted right, 10 days pass for the year on Thule, unless there are     
>some days that simply are not mentioned. (...)
>Further more, Bet claims 20 years of experience on AFRICA, and the ship
>was build around 2320 (the time of _Hellburner_) and she left the
>ship in 2352 (on Pell). This would indicate a time compression of
>1,5:1 and not of 30:1 as in _Rimrunner_.
It's some time since I read RIMRUNNER in detail, but it was my impression that the time compression experienced in that sequence was *not* typical, even for the Fleet, except at this ultimate stage of the war, when both the pressure and the stakes were higher.
Beth


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>Date: Thu, 13 May 1993 10:58:17 CDT
>From: mills@centurylub.com
>Subject: RE: C. J. Cherryh List
Well I guess I'll throw my unsolicited 2 cents worth in the ring on the time dilation discussion. I agree with Beth N. that the compression experienced in _Rimrunner_ was unusual, but the comparative compression ratios would still be different between the _Rimrunner_ 'episode' and Bet's time on the Africa if only because the 'real time' to 'jump time' ratios would be different for a 20 yr venture requiring resupply + maintenance, and the repeated jumps of _Rimrunner_ with little or no 'real time'. What that ratio might be is anybody's guess, I assume they would be different for every 'flight' and for every vessel. (Would cumulative time spent at partial C velocities not be a factor also ?)
     Steve


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>From: Onno Meyer <Onno.Meyer@arbi.informatik.uni-oldenburg.de>
>Subject: cherryhlist
>Date: Mon, 17 May 1993 16:17:19 +0200 (MET DST)
(...)
[...]
> would be different for every 'flight' and for every vessel. (Would 
> cumulative time spent at partial C velocities not be a factor also ?)
>      Steve
I think not. I never got that far in physics, but from the formulas only prolonged flight at .75 c or shorter times at much higher speeds should be a factor. (...)
	Onno 

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