On Fri, 23 Mar 2018 20:45:12 +0100 Fons Adriaensen <fons@xxxxxxxxxxxxxx> wrote: >On Fri, Mar 23, 2018 at 09:29:04AM -0400, Paul Davis wrote: >> On Fri, Mar 23, 2018 at 6:05 AM, Ede Wolf <listac@xxxxxxxxxxxxxxxx> wrote: >> >> > [ ... ] but I just happen to be looking for large spaces. Cathedrals and >> > the like. Why not the whole universe? >> > >> >> the universe has no early reflections. > >They are sparse, but their is at least one. Radio amateurs are >routinely bouncing signals on the moon. Meteor showers are used >as well. > >Ciao, > Now *that* brings back an ancient memory! In the late 1960s, there was a talk at the colledge by a group of radio amateurs, and the bit that stuck in my mind was on maintaining VHF communications across the English channel... by bouncing the signals off aircraft using a combination of flight times and tracking gear :) There was a bit of a competition going as to how long they could maintain contact, continually switching planes as their paths crossed. I don't remember any figures, but believe it was in days rather than hours. -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user
