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The smallest unit of time that has been directly measured is about 10-18 seconds.
Planck time (about 5.4 x 10-44 seconds) may be the shortest possible length of time, in principle as well as in terms of limit of measurement. It is not yet clear whether or not time is a 'quantized' concept.
Not everyone agrees on what time is. Time, however, is clearly a quantized concept. But it is sensitive to frames of reference. Consider that the GPS birds in orbit that tell us where we are via our clever gadgets are moving at orbital velocity. And their "high speed" frame of reference (compared to earth) makes "time" different for them compared to us. This must be accounted for in calculations to achieve accuracy in the computation of a location.
With the idea of relativity (which is what it's all about) kept clearly in mind, we can measure the velocity of all kinds of stuff. And do it well. But how small an interval? We can conceptualize infinitely small periods. But the shortest amount of time that we can measure is something on the order of 10 -15 seconds or so. The cesium fountain clock is the ticket to timing something that brief, but the few that exist are used as time standards and not for "timing events" or the like.
Wikipedia has knowledge for free, and a nice article on atomic clocks can be found there. A link is provided.
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Who in Big Time Rush is the shortest?
Carlos Pena is the shortest.
When is the shortest day in texas?
The day with the shortest time between sunrise and sunset in the northern hemisphere is the day of the December solstice. In Texas' time zones, that falls between Dec. 20 and Dec. 22 inclusive.
The sun casts the shortest shadow of the day at noon acorrding to what?
Apparent solar time
The shortest and longest days mark what season?
Periods of time are NOT affected by the seasons.
When is the shortest day of the year -and what do you call this time?
July 4th, it is called Bar bole Day
What is the shortest measurement in centimeters?
The shortest measurement in any unit is none of them; for centimeters it is 0 cm.
How long is a zetrosecond?
A zetrosecond is a unit of plank time and is the shortest measurement of time ever. The simple answer is , a billionth of a trillionth of a second.
What is the shortest time span?
Theoretically, the smallest time measurement possible is one Planck time, around 5 x 10-44 seconds. The shortest time interval measured so far is around 12 attoseconds (approximately 10-17 s).
Is millimeter the shortest unit of measurement?
nope you have a micrometer and a nanometer
Which is the shortest 0.1mile or 10.4 feet or 10.3 feet or 10.4 mi?
10.3 feet is the shortest measurement.
Which ancient civilization lasted the shortest time?
ancient Greece lasted the shortest time
Who in Big Time Rush is the shortest?
Carlos Pena is the shortest.
Who held the shortest time as president?
William Henry Harrison served as president for the shortest time?
What is the shortest measurement between two points?
nanometers are 1 billionth of a centimiter Theoretically, a nanometer can still be divided into smaller units. A point is also theoretical and has no dimensions, so there is no shortest distance.
Which is shortest 30 centimeters 1 meter 100 millimeters or 15 centimeters?
Of those units of measurement, the shortest is 100 millimetres - this is equal to 10 centimetres or 0.1 metres.
Which great lake has the shortest retention time?
Lake Erie has the shortest retention time of about 2.7 years
What is the shortest pregnancy time for animals?
Possums have the shortest pregnancy at 16 days.
