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> huge inflatable ball inside a crater and it only takes a little gas I would think a huge inflatable ball needs a huge amount of gas, which is hard to find on
by galaxyLogic 3y ago
> huge inflatable ball inside a crater and it only takes a little gas
I would think a huge inflatable ball needs a huge amount of gas, which is hard to find on Moon?
- gorkish 3y agoWell the idea is that it takes far less gas by mass to inflate a balloon against the vacuum of space and support the weight of the envelope in lunar gravity as it does to inflate a balloon against 1 atmosphere and support the envelope in Earth gravity. It's also worth noting that the pressure vessel need not be spherical either; it only needs to produce the correct shape for the reflective part when pressurized. For the specific application of the LCRT though it's probably not going to win. For one, a reflector at the HF frequencies they are targeting doesn't even need to be continuous; it can be a large open wire grid and will still be radio opaque at the required frequencies.