[time-nuts] Germany sends optical-clock signal over nearly 1000 km

[Hal Murray]

http://tinyurl.com/6of34oq
http://physicsworld.com/cws/article/news/2012/apr/26/germany-sends-optical-clo
ck-signal-over-nearly-1000-km

Physicists in Germany have sent a burst of light over a distance of 920 km 
down an optical fibre -- with its frequency remaining stable to the 19th 
decimal place. As well as supporting the development of highly accurate 
"optical clocks", the breakthrough could also be used in a range of 
commercial and scientific applications including precision spectroscopy, 
geodesy and very-long-baseline astronomy.

-- 
These are my opinions, not necessarily my employer's.  I hate spam.