[time-nuts] temperature stability basics
jfor at quik.com
Sat Nov 27 23:30:59 UTC 2010
You could probably buy enough pink fiberglass to insulate a house for what
one of those cost. They might even cost more on eBay
> 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>,
>> 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, but for lab-settings, it would work fine.
>>  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
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