Interesting way of producing lenses in microgravity

[Stonius (Markus)]

https://petapixel.com/2022/04/06/nas...-size-of-webb/

The most interesting thing is that they managed to do it on earth by matching densities of the containing and injected liquids, and the result is a lens that has better optical precision than one that had been ground using traditional methods.

Markus

[mura_gadi (Steve)]

They need Brock's energy polarizar to align up the chem chains before setting...

Earth applications are pretty cool, I'm a little negative about using liquids for costs and size/weight etc, but for robustness launch to orbit you can't beat it . *

I saw one with two gas filled membranes acting as a refractor suspended 100m's apart in space. Thought that had potent for a large scope with low launch costs.


*Though launch per kilo is dropping in recent times

[Visionary (David)]

Originally Posted by mura_gadi

They need Brock's energy polarizar to align up the chem chains before setting...

Earth applications are pretty cool, I'm a little negative about using liquids for costs and size/weight etc, but for robustness launch to orbit you can't beat it . *

I saw one with two gas filled membranes acting as a refractor suspended 100m's apart in space. Thought that had potent for a large scope with low launch costs.


*Though launch per kilo is dropping in recent times

Good grief, someone else remembers the energy polariser. I bet you’ve got a blue print of Adelaide’s Multifunction Polis.