ZME Science: Yes, a quantum internet is possible, new study shows

[grarpamp]

On 12/31/18, Steven Schear <schear.steve at gmail.com> wrote:
> Retrorefltors are very useful. They are hard to beat for covert comms.
> Unfortunately, optical ones are limited by weather. Much more versatile,
> if possibly less covert, are radio types. Ultra lights the size of the Echo
> are now easily deployed via inflatable and UV regidification.

Retros point back, perhaps not so much useful for direct
comms outside their relative dispersion return fields.
Planar mirrors, lenses, over horizon, ionosphere, relays,
lofted nuke comms, etc are different.

https://en.wikipedia.org/wiki/Retroreflector
https://en.wikipedia.org/wiki/List_of_passive_satellites