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Re: your mail = Greenhouse
to: Kevin C Houston
> On Sat, 24 Feb 1996, Timothy van der Linden wrote:
> > >It isn't that sunlight is stronger or lower in the IR bands, it's that
> > >earth-light is much much loser in the UV and visible bands.
> > What do you mean by loser?
> Sorry, I meant lower. the s key and the w key are too
> close on my keyboard :)
You said that?
> > >that is not true. the _has_ been a temp rise over the last 90-100
> > >years. It is small, and it cannot be _proven_ to be caused by the
> > >greenhouse gases, but it has occured.
> > Indeed, NASA is only one experiment. Ground-based weather data show a
> > increase. I am interested though why both methods seem to disagree.
> > writes in an article that global temperature did increase the last
> > so it is not just a story from the newspapers and environmentalist)
> One theory, is that it is due to the "heat island" effect
> around urban centers. but this does not seem adequate
> in talking about records gathered in small rural towns
> (like my home town of Viroqua WI) The population of
> Viroqua is something like 3600, and the whole town
> fits within one square mile. Heat island effect
> cannot explain the temp rise is such pastoral settings.
Suppose that would depend on where they put the thermometer?
> > How convenient, whatever we do, we're gonna die anyway ;)
> No, we will just have to find another source of energy,
> it will either be fusion or space-based solar
I thought you just argued against space based solar?
> About the ship:
> I have a design outline that I would like everyones comment on:
> 1) Ship leaves Sol using Maser sail.
> 2) Ship enters TC using MARS lineac.
> 3) Exploration of TC and construction of maser array.
> 4) return module (more on this below) leaves TC using Maser sail.
> 5) Return Module enters Sol using Maser Sail.
Last I heard the numbers showed the lineac core couldn't over power the boost
from the micro wave. I.E. no brakes!
> The Lineac Core, large tanks, rotating hab sections,
> exploration equipment, etc. would all remain in TC
> system. only the return module and the maser sail
> would go back. This should reduce the return module
> mass by a factor of 25 (from 2.5 E9 to 1 E8)Kg
You'ld need the hab centrafuge for the living quarters otherwise the crews
health would decline. Also the heavy radiation shielding would need to be
Why do you assume a factor of 25 weight reduction? You never gave any weight
> the return module would be the crews quarters during
> both acceleration phases, the mass should be about
> 1 E8 Kg (may be too large) ---
Whats your crew compliment? 100,000 tons does leave a lot of weight for
> --- during the trip to TC, the return module would be
> tucked inside the rotating hab sections. the Rotating
> sections, then are freed from the design criteria
> of having to adapt to multiple gravity vectors, the
> rotating portions are designed to rotate only. --
Sounds like you just doubled the size of the habitation zones. One complete
set for accel and decel, another for artificial G (centrafuge) operations.
> --- This greatly increases the amount of interior
> space available to the TC explorers while in the target
I don't see how.
> I will be putting this on a web page soon, so that you
> all can see what I am talking about.
> Kevin Houston
I hope I can get to it over the web. ;)
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Date: Sat, 24 Feb 1996 02:59:05 -0600 (CST)
From: Kevin C Houston <firstname.lastname@example.org>
To: Timothy van der Linden <T.L.G.vanderLinden@student.utwente.nl>
cc: KellySt@aol.com, email@example.com, firstname.lastname@example.org,
Subject: Re: your mail = Greenhouse
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