[ARC5] Cool but Pointless

[Roy Morgan]

On Feb 15, 2016, at 2:52 PM, Leslie Smith <vk2bcu at operamail.com> wrote:…
Re: [ARC5] The International System of Units (SI)
> ...
> In Tasmania (VK7 is a small island south of the Australian mainland) a
> group has been experimenting with long range optical communication. ... they got communication (by light)
> from Hobart to Launceston.  That's about 120 miles. …   That's pretty
> cool, in my book. At the same time it was quite pointless. 

Leslie,

NASA might need their expertise:

From:
http://www.nasa.gov/topics/technology/features/laser-comm.html

"NASA to Demonstrate Communications Via Laser Beam
 
… It currently takes 90 minutes to transmit high-resolution images from Mars, but NASA would like to dramatically reduce that time to just minutes. A new optical communications system that NASA plans to demonstrate in 2016 will lead the way and even allow the streaming of high-definition video from distances beyond the Moon. … "

Searching with Google for: "Navy Laser Communication” reveals that there’s interest among naval communicators in laser technology.  Qubits in the ocean anyone?  (What is a qubit, anyway?)

Speaking of milliHertz - es, I wonder what frequencies are involved when an undersea earthquake happens and sends detectable waves through and around the globe of the earth.

 
Roy

Roy Morgan
k1lky68 at gmail.com
K1LKY Since 1958