>Very small, high precision spheres are hard to make
I remember this was on a list of zero-g manufacturing techniques that NASA was investigating at one point. I wonder what became of that? Normally, I'd think the cost would be prohibitive, but you can probably fit a lot of 0.1mm ball bearings in a ton of cargo.
I remember this was on a list of zero-g manufacturing techniques that NASA was investigating at one point. I wonder what became of that? Normally, I'd think the cost would be prohibitive, but you can probably fit a lot of 0.1mm ball bearings in a ton of cargo.