News for hackers. Stuff that matters.

A comment on A new era for Arecibo: legendary observatory begins next phase. Parent comment

Re:A new era for Arecibo: legendary observatory begins next ... by echelon on Friday September 29, 2023 @12:45PM (#37706789)
> You can't solve the coherent beam problem without actually having an antenna that really is that big.

What's the tl;dr on the math here?

[ Parent | on HN ]

There are no comments on this comment yet.