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Re: new web site/status report

At 1:19 AM 4/11/96, Timothy van der Linden wrote:
>>Can I assume the 19.89 mass ration is composed of 1/4th antimatter and
>>3/4ths reaction mass (normal matter)?
>Yes, that's about the case (25.35% to be more exact)

5 times the ships mass in Anti matter and 15 times in matter.  Err.

>>By the way, I was wounderin.  DID ANYONE LOOK AT THE NEW WEB PAGES!!??  the
>>ones under Explorer_Class, Status_Report, and Support_Craft at Daves
>>Theres 50 - 60 pages of stuff up there so I expected some comment from
>Well last time I looked, I had not much time and thought to have found only
>5 pages (now I see that I missed several links). This was 6 days ago. At
>home I have limited access-time so when knowing that I need to be on the web
>for several hours I go to university where it is free and unlimited. Because
>I don't live on campus and currently have holidays I need to go there which
>takes an hour by bus.
>For this reason it would be handy if the pages are zipped up somewhere, so
>that I can make a handy reference copy at home and read it in my comfi chair.
>Besides all this I wrote a message a week ago asking if my page looked OK,
>never heard anyone about it (except Rex in a private letter). I don't care
>(well I do) but I do not like you telling to look at your page fast while
>you yourself are neglecting my simple request (one single page).
>I had planned to go to the university tomorrow, so then I will look once
>more at your page.

Oh I'm sorry, I just thought you were listing the equations in a small page
and linking to a program that was incompatable with me anyway.  Since I
can't follow half your equation I thought I was out of the loop.

'Page' is aukward term for web docs.  I keep thinking of about a printed
sheet of pager worth of text.


Netscape did seem to have any problems.  All images/equations seemed to
display fine.

How on earth do you pronounce "Yrev Tsaf"?  Does that mean anything special?

The fine print with purple charcters is a little hard to read but not a big

Some of the tables would be more helpfull if related to a physcal thing.
For example where you list fusion energy to specific impluse.  Fusion
energy is listed in what I think are mass conversion ratios.   (100, 200,
300, etc.)  Which would be more help full if you had a table showing what
fusion reactions generate those amounts.  Or more clearly explained the

This is a big issue to me, since I'm trying to consider things from an
engineer point.  So I usually need exaust velocity/specific impulse, or
power in watts per kilo/pound of fuel, or something.

Mentioning which units your using in the equations would be a big help too
(kilos, gram, mols - watts, ergs, Joules, etc.)

Some parts I couldn't follow.  For example.

Results of the calculations:

 Mass at time t
                   : ( 8.1) ( 8.2)
 Power needed at time t
                   : (14.1) (14.2)
 Total Energy needed
                   : (12.1) (12.2)

Use (xx.1) when condition (3.3) is true, otherwise use (xx.2)

I have no idea what your saying here.  In general I had a hard time
following the arangement of the equations and the numbering scheme.

at one point:

Energy mass needed:

Mass left over after "extracting" the energy:

The following formulas determine if and how much mass should be dumped:

This condition can be rewritten:


f is (Total mass)/(mass that can be converted to energy)
f is always bigger than or equal to 1


       For matter & anti-matter mixture f=1 and L[t]=0
       For  De+He > He ...... fusion (3.5E14 J/kg)
       f=257 and L[t]=256k[t]-j[t]

I couldn't fiqure out how to work back to the equations.  Possibly going
through the use of the equations a step at a time or something, might help.

I tend to get lost in the equation section.  Which can be frustrating since
it seems to be covering info I want to get.



Kelly Starks                       Internet: kgstar@most.fw.hac.com
Sr. Systems Engineer
Magnavox Electronic Systems Company
(Magnavox URL: http://www.fw.hac.com/external.html)