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6th December, 2006, 04:43 PM
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| Seeing the light - quickly There's an interesting article over at Science Daily about how scientists have managed to measure the wave pulse characteristics of a laser pulse that last just 10 femto-seconds. To give you an idea of how fast that is, try this thought experiment: take one second; divide it into 1,000 equal pieces. Each of those pieces now represent one milli-second. Now, take one milli-second and divide that into 1,000 equal pieces. Each of those pieces is a micro-second, or one millionth of a second. Rinse and repeat, now you have a nano-second; one billionth of a second. Another cycle, you have one pico-second, equal to one trillionth of a second. Once more around, and you have one femto-second, which would be one quadrillionth of a second, or 1.0 E-15 of a second. Read more on the Front Page: http://www.aoaforums.com/frontpage/content/view/1456/2/
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6th December, 2006, 05:12 PM
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| That's quick. Almost as fast as I'm at clicking my mouse when playing farcry!
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6th December, 2006, 09:47 PM
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| that hurts my brain.
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7th December, 2006, 06:28 AM
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| So it's about this fast...did ya see it.....watch, did ya see it? That is amazing tech...
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7th December, 2006, 07:27 AM
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| Its not really about the speed at which it can be detected, its how short of an existance can still be detected. It will take time to process that data etc
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7th December, 2006, 09:05 AM
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| I think that's really cool, why did they do this? just to see if it could be done??
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7th December, 2006, 09:35 AM
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| Quote:
Got that...I was just referring to an event one quadrillionth of a second long.
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7th December, 2006, 11:42 AM
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| That's super fast. Amazingly fast. Would our eyes even be able to cope with that kind of speed? Or would they just burn in our sockets?
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8th December, 2006, 04:13 PM
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Talk about a waste of science and money to acheive that 10 femto long light pulse measurement. Cancer needs curing..dang scientists.
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9th December, 2006, 06:59 AM
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| Femtosecond pulses have interesting characteristics, such as their long-range propagation. For some reason (that I don't know), femtosecond laser pulses are self-focussing, giving them a far longer range than should otherwise be possible.
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