[757labs] Hackerspaces in Space: Year 2

[Trevor Lewis]

Just use a small check valve. They're simple enough that they could probably
be printed very quickly on the makerbot.

On Tue, Sep 27, 2011 at 8:39 PM, Michael Perry <mperry777 at gmail.com> wrote:

> At that temp would the rubber used for a bicycle inner tube be useful.
> Turns brittle and fractures.
>
> http://www.oringsusa.com/html/temperature_range_of_o-rings.html
>
>
>
>
> On Tue, Sep 27, 2011 at 8:29 PM, Almost_There at COX.Net <
> Almost_There at cox.net> wrote:
>
>>
>> Michael;
>>
>>     Like -60F or so, but we used the same balloons used by the National
>> Weather Service; they are made to handle it.
>>
>>
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> If we knew what we were doing it wouldn't be research.
>
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