3 ms·
It actually uses a closed system: https://webb.nasa.gov/content/about/innovations/cryocooler.html https://webb.nasa.gov/content/about/innovations/cryocooler.h.
by shepardrtc 5y ago
It actually uses a closed system:
https://webb.nasa.gov/content/about/innovations/cryocooler.html https://webb.nasa.gov/content/about/innovations/cryocooler.h...
- deleted 5y ago[deleted]
- jerjerjer 5y agoDoesn't liquid helium always evaporate?