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Robotics Developer
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re: Cloudy with a chance of protons
Robotics Developer   1/25/2012 11:50:45 PM
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I lived in Alaska for 4 years and the northern lights are amazing! I can say the most impressive part (to me anyway) was the fact there was NO noise! It was a great light show, with the wavy curtains of multi-colors in the night sky. Makes me wish I was back in Fairbanks.

David Ashton
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re: Cloudy with a chance of protons
David Ashton   1/25/2012 10:50:56 PM
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Thanks Jack. I gotta get up north and see them sometime before I die.

jackOfManyTrades
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re: Cloudy with a chance of protons
jackOfManyTrades   1/25/2012 8:44:57 AM
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It's what you actually see. I've seen it a couple of times on the plane to Japan.

David Ashton
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re: Cloudy with a chance of protons
David Ashton   1/24/2012 8:03:33 PM
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Saw some great aurora pics on TV from Scotland last night. Someone who has seen one tell me something - when you see "curtains" of light moving across the sky, is that what you actually see, or is that time-lapse video?

BicycleBill
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re: Cloudy with a chance of protons
BicycleBill   1/24/2012 11:41:27 AM
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We all love those wireless links, but there is still a major role for copper and especially optical fiber.



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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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