Importance Of Atomic Clocks

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Section-1 Atomic clocks are already the best thing we can have in today's world for time measurement (in terms of precision and accuracy) which is far more better then the ticks of pendulum. Now the researchers at National Institute of Standards and Technology have developed a new clock which uses a different approach for better accuracy. The researchers claim that it is more precise then the existing atomic clocks, roughly by a factor of 10. The present atomic clocks gain 1 second in about 30 million years. The new atomic clock developed by NIST researchers is such that it would gain 1 second in about 100 million years (which is really a very big achievement, but we can expect more such coming in near future). With this the definition…show more content…
Hence we can say that once it comes to time or frequency analysis where minimum error is the need, quantum mechanical absorbers such as atoms may serve very well. Modern science have defined so many characteristic properties of atom that we are now able to formulate and compute the problems, that were not solvable before. Also each and every photon has exactly the same mass, charge and size but the same is not the case with any pendulum, hence we can achieve a better clock which will “tick” the same way as the every other clock of its kind in the…show more content…
A femtosecond (1 × 10−15 s) is to a second is what a second is to about 31.71 million years and an attosecond (1 × 10−18 s) is to a second is what a second is to about 31.71 billion years. Thus if we may operate at such a high precision, then the standards may move to adopting the new atomic clocks being made, which may also lead to various help in future (as the major units like meter, volts etc. also depends on the second). The experiments that are done in this 21st Century are leading to various results that may increase the limit of the current precision that we are limited to (By Standard Definitions). Experimental atomic clocks, i.e. the one that provide non Cesium based secondary representations of the second, are proved to be so precise that they just does not restrict themselves to the measurement of time and frequency, but are likely to be used as extremely sensitive detectors for other things. To understand it how, we can see for an example that the frequency of atomic clocks is altered slightly by gravity, magnetic fields, electrical fields, force, motion, temperature and several other phenomena. The experimental clocks continue to improve day by day, and leadership in performance has been shifted back and forth between various types of experimental clocks. Thus we may also bring the change, not only in the time or frequency analysis and precision, but also in various other fields, that we may not be having a clear

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