what is a yoctosecond?
815694
One trillionth of one trillionth of one second.
559273
Speed of light, dude. The other reaction is the speed of electricity, which is slower than the speed of light a lot! \n\nDo the math - your foot hits the object - less than a second later the impulse hits your brain and you stop stepping down. So to travel say 12 feet (you are six feet + tall, so six feet up and six feet down) it is one second. 1 second divided by 12 = .08 feet per second.\n\nNow take the speed of light, which is roughly 186,000 MILES a second, or 186,000 times 5280 (feet in a mile) which is 982,000,000 feet a second (982 MILLION feet a second). So, to travel the 12 feet would take 0.0000000001018329939 seconds - over 10,000,000 times faster (ten million times faster). \n\nHope that helps!
797275
5ms\n\nThat means the pixel can go from ON to OFF in five millionths of  a second.\n\nthe 16 ms takes over three times as long, this means fast changing images (games, dvd) will look a little less sharp
1169695
micro or even nano seconds, very fast.
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2. An oxygen molecule moving at 560 meters/second.
227662
Khon - see - erge\n\nSay it semi-fast
997831
divisions of seconds, such as milliseconds, or one thousandths of a second
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Yes time "dilation".\n\nt.sub.b = t.sub.a/sqrt(1-(v/c)^2)\nEinsteins Special Theory of Relativity, and earlier references.\nwhere .sub.  means following character is a subscript\nsqrt(   ) means square root()\nx^2  means x squared, v is objects velocity and c is speed of light.\nand t (should actually be delta t) = (t.sub.1 - t.sub.0) or "duration"\n\nThe time duration of person "b" traveling at a speed of "v" observed by (relative to) person "a" is the above function of the speed and the duration.\n\nas "v" gets faster and faster, v/c gets closer and closer to 1 and the denominator gets closer and closer to zero  (1 minus v^2/c^2), see?  Which means  the time duration person "b" seems to experience as observed by person "a" stretches out (it dilates) or slows down.  Things seem to take longer when "b" is doing them than when "a" does them, according to person "a".  \n\nExample:  two fire crackers with exactly the same length fuses which will explode exactly 5 seconds after they are lit.  One is floating outside person "a"'s spaceship and the other is about to zoom by (being launched by a friend using a mass driver cannon.... )  Person "a" powers up her laser and takes the shot as the fire cracker zooms by and miracle of miracles! lights both with one shot!  The one floating there goes off exactly 5 seconds later.  Question when did the other one go off?  Answer: depends on how fast is zoomed by!  if v/c=0.8 then (v/c)^2=.64  and the square root of (1-.64) = sqrt(.36)=0.6 so 5/0.6= 8.33 seconds or 3.33 seconds after the other one. \nThe mind boggling thing is that if the friend was zooming along with the speeding fire cracker, he would see that his went off exactly 5 seconds after the laser hit the fuse but the one floating outside his friends space craft took another 3.3 seconds to explode.
311698
I'm not sure if this is what you are looking for, but rapidity, in special relativity, is defined as \n\ntanh(rapidity) = v/c,\n\nwhere v is the speed of the particle, and c is speed of light.  For v << c, rapidity ~= v/c; for high v, it may be a more intuitive measure of speed beacuse it ranges from 0..infinity (as opposed to v/c, which is always < 1)
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i can get one in under 5mins.\n\nit's mindblowing experience.  you entire body shakes as the blood courses through your body.
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We don't know. People used to think it was 4 seconds, but now studies are showing it's longer. They probably run tests. But who cares for one, and two how do they know for certain.
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200 inches per second (or 500 cmps)
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Time is the number of occurence of one event  relative to another event such as the number of earth revolutions around the sun relative to the number of revolutions of another planet, say Pluto, around the sun.
226867
The speed of light. 186,000 miles per second.
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A zeptosecond laser...used to look at intra-atomic processes.  It produces laser pulses with a duration of 10E-21 second.  One billionth-of-a-trillionth of a second.\n\nFemtosecond lasers produce longer (but still extremely short) pulses and are used routinely in laboratories to probe atomic vibrations.\n\nhttp://www.newton.dep.anl.gov/askasci/phy99/phy99505.htm
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View it through a magnifying glass- thats quickest
1061954
They are also used in pump-probe experiments-- if you want to measure things (atomic motion, for instance) on a very short time scale, you would need a very short pulse.  \n\nA pump-probe experiment uses one laser pulse to excite the sample, and then a second pulse is sent through the sample and some property of the pulse is measured i.e. transmission, reflectance, phase shift. as a function of the time interval between pulses.  From measurements at different times, you can determine the response of the sample to the laser pulse.