The optical atomic clocks
![The atomic clock The atomic clock](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGc9Z_OiMkhS7zgI0Rvcm2blHclK35oQfeSc7IEJO8dOQ2xfxOr6cnANWB1Gd5EInGaiKDkYJY-uFazLf0XWwpMnge3yPyXAv0grx_tngFzeW3opgEF4Zqk8hrceC0_BNuAFrrIVU_m2UO/s200/atomic+clock+6.jpg) |
The atomic clock |
It is popular that the atomic clock retains its accuracy within 1 sec for every 300
years , and it was among one of the first clocks to better the accuracy of
conventional timekeeping methods , And the atomic clocks are used in telecommunications .