On Wed, 23 Sep 2015 02:59:18 +0000 (UTC) jim bell <[email protected]> wrote:
> > But only a dweeb doesn't know that X-rays cannot be focussed.
> > (With one very obscure exception not applicable here. Find it and
> >get an "attaboy!". )
Isn't it possible to focus any sort(frequency) of EM wave, at
least in theory?
> Its called Grazing Incidence
>
> https://en.wikipedia.org/wiki/X-ray_optics
