[time-nuts] temperature stability basics

[J. Forster]

At this point, bits of the Shuttle are "collectibles" and are priced
accordingly. Just like genuine Apollo bits, they aren't making it any
more. What was a couple of bucks surplus in the 1960s now brings far more.

FWIW,

-John

=================

> No more costly than big pieces of aerogel and, since NASA's acceptance
> standards are so high there has to be some around that failed quality
> checks....
>
>
>
>
> On Sat, Nov 27, 2010 at 6:30 PM, J. Forster <jfor at quik.com> wrote:
>
>> You could probably buy enough pink fiberglass to insulate a house for
>> what
>> one of those cost. They might even cost more on eBay
>>
>> -John
>>
>> ===============
>>
>>
>> > How about surplus HRSI tiles off the Shuttle?
>> >
>> >
>> >
>> > On Sat, Nov 27, 2010 at 1:47 PM, Poul-Henning Kamp
>> > <phk at phk.freebsd.dk>wrote:
>> >
>> >> In message
>> >> <05fb5f7f819d035fdc8556f9b4842b98.squirrel at webmail.sonic.net>,
>> >> "Rick
>> >>  Karlquist" writes:
>> >>
>> >> >The general consensus was that
>> >> >all foams were more or less similar thermally,
>> >>
>> >> There is indeed very little difference, in particular if the foam
>> >> is encapsulated so the open/closed bubble difference is eliminated.
>> >>
>> >> These days aerogel is the big thing, and Aspen Aerogel's "spaceloft"
>> >> series of products are seeing a lot of use in tight spaces.
>> >>
>> >> It is also possible to buy aerogel as granulate, for instance from
>> >> United Nuclear, but be aware that it will draw moisture like there
>> >> is no water tomorrow, so always use gloves and a respiratory filter.
>> >>
>> >> I'm not sure the mechanical strength of aerogel would be any use
>> >> for military OCXO's[1], but for lab-settings, it would work fine.
>> >>
>> >> Poul-Henning
>> >>
>> >> [1] People tend to forget that aerogel is one of the strongest
>> >> materials *relative to its weight*, and at the same time the
>> >> solid with the lowest density.  The first thing people do on
>> >> picking up a piece of aerogel is typically to crush it.
>> >>
>> >> --
>> >> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
>> >> phk at FreeBSD.ORG         | TCP/IP since RFC 956
>> >> FreeBSD committer       | BSD since 4.3-tahoe
>> >> Never attribute to malice what can adequately be explained by
>> >> incompetence.
>> >>
>> >> _______________________________________________
>> >> time-nuts mailing list -- time-nuts at febo.com
>> >> To unsubscribe, go to
>> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> >> and follow the instructions there.
>> >>
>> > _______________________________________________
>> > time-nuts mailing list -- time-nuts at febo.com
>> > To unsubscribe, go to
>> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> > and follow the instructions there.
>> >
>> >
>>
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>