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nicolas.mokhoff
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re: Amazing time-lapse shots from Cassini and Voyager
nicolas.mokhoff   5/2/2012 3:28:06 PM
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You do have to remind yourself that this is a musical collage of space activity so many miles from here, produced by a videographer. Making it into into an art form reenforces the real hard work that so many NASA enginers and scientists poured into so many space probe technologies: http://www.jpl.nasa.gov/missions/

BicycleBill
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re: Amazing time-lapse shots from Cassini and Voyager
BicycleBill   4/30/2012 10:18:52 PM
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I wonder if our instant-gratification culture has the patience for such long-range, long-period projects: http://www.eetimes.com/electronics-blogs/other/4205118/Do-we-still-have-the-patience-and-stamina-for-deep-space-missions-

BicycleBill
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re: Amazing time-lapse shots from Cassini and Voyager
BicycleBill   4/30/2012 10:16:44 PM
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An excellent book on the dual Voyager probes is: "Voyager: seeking newer worlds in the third great age of discovery", by Stephen J. Pyne, a lengthy but fascinating look at the 30+ year dual missions (launched in 1977, and recently officially concluded) to the edge of our solar system, and beyond.

george.leopold
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re: Amazing time-lapse shots from Cassini and Voyager
george.leopold   4/30/2012 10:08:15 PM
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Equally astounding is the fact that one of the Voyager spacecraft is about to leave the solar system and enter interstellar space. Voyager 1 (two were launched to ensure the mission would succeed) will be the first man-made object ever to leave the solar system. The Voyager 1 spacecraft is expected to continue sending signals back to Earth as long as its plutonium power source holds out, perhaps until 2025. What a machine! \http://www.smithsonianmag.com/science-nature/Timothy-Ferris-on-Voyagers-Never-Ending-Journey.html

Duane Benson
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re: Amazing time-lapse shots from Cassini and Voyager
Duane Benson   4/30/2012 8:17:21 PM
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That is some stunning imagery. It's sad that our manned space program is uncertain at the moment, but all of the probes we have out running around the solar system never cease to amaze me.

Bert22306
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re: Amazing time-lapse shots from Cassini and Voyager
Bert22306   4/30/2012 7:59:23 PM
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Pretty astounding alright. We're so used to special effects and animation that I kept having to remind myself that this was the real deal.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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