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jimfordbroadcom
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re: For those who don't think science is exciting...
jimfordbroadcom   2/17/2012 5:22:11 PM
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Anybody notice that the funnel, the beaker, and the bell jar around them are all made out of glass, another extremely viscous substance? Windows in old houses have been known to be noticeably thicker at the bottom than at the top due to the relentless effects of gravity. Max, if you're interested in long-term machinery, check out the 10,000 year clock here: http://spectrum.ieee.org/geek-life/profiles/engineering-the-10-000year-clock Jim

EVVJSK0
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re: For those who don't think science is exciting...
EVVJSK0   2/3/2012 7:17:32 PM
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Now that I think about it, Kelvin may have invented "The Slunky" ;-)

EVVJSK0
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re: For those who don't think science is exciting...
EVVJSK0   2/3/2012 7:16:41 PM
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Kelvin may have actually invented "The Slinky" !

Max The Magnificent
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re: For those who don't think science is exciting...
Max The Magnificent   2/2/2012 1:43:30 PM
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Can you imagine the excitement after 8 years or so when the first drip dropped? It actually surprises me that the drips are independent -- I would have guessed that the stuff would simply stretch down like melting cheese...

Max The Magnificent
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re: For those who don't think science is exciting...
Max The Magnificent   2/2/2012 1:38:06 PM
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Thanks for this link -- very, very interesting

Max The Magnificent
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re: For those who don't think science is exciting...
Max The Magnificent   2/2/2012 1:37:36 PM
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Wow -- thanks for this information -- it always blows me away how people manage to conceive stuff like this...

Tom_nickname
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re: For those who don't think science is exciting...
Tom_nickname   2/2/2012 11:49:17 AM
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More details on Lord Kelvin's pitch experiment in Glasgow: http://eprints.gla.ac.uk/3309/1/G1asgow_Physics_Heritage_final_draft.pdf See figure 5. Looks like Kelvin thought of it first (1887) and his version has been running longer.

Man21
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re: For those who don't think science is exciting...
Man21   2/2/2012 11:36:47 AM
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There is a much older version of this 'experiment' started by William Thomson/Lord Kelvin in the late 19th century. A block of pitch was placed on the top of a wooden staircase and the pitch slowly flowed down the steps like a glacier. The apparatus was in the Department of Natural Philosophy (now Dept. of Physics)in Glasgow University when I left in 1960. Scott Hamilton.

palf
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re: For those who don't think science is exciting...
palf   2/2/2012 8:48:44 AM
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An alternative title might have been Putting "watching paint dry" to shame

Max The Magnificent
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re: For those who don't think science is exciting...
Max The Magnificent   1/31/2012 3:45:12 PM
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Unfortunately the taste is much the same (grin)

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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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