Re: Amazing Russian space history photo archive

Pat Flannery <flanner@xxxxxxxxxx> writes:

Their usual pressurant gas for the electronics compartments was helium.

Can't say I'd heard that before. It's an interesting choice: helium
conducts heat quickly, is very light, and, having the smallest molecule
of any gas, is spectacularly able to leak, through spaces which are
effectively solid walls to other gases.
.

Relevant Pages

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  • Re: The LNB and the kettle
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