"lossless" optical waveguide - loss floor in glass media

[Punk]

On Thu, 12 Sep 2019 16:46:27 +0000
coderman <coderman at protonmail.com> wrote:

> Geballe and Hull2found that the thermal conductivity of germanium enriched to96%74Ge is approximately three times higher at the maximum than that of germanium with the natural isotopic composition. 

	So it's a well known fact that isotope mixes have an influence on transmission of energy. Which makes any sort of patent on this stuff even more ridiculous and criminal.