Atomic Digital Clock Auto Set (no back light) - Using radio frequencies broadcast from NIST’s Colorado , the clock will automatically set to the correct time. Automatically adjusts to Daylight ...

You expired, Jesus, but the source of life gushed forth for souls and the ocean of mercy opened up for the whole world. O Fountain of Life, unfathomable Divine Mercy, cover the whole world and ...

So steady are these oscillations that atomic clocks keep better time than the spinning earth itself The "pendulums" which regulate them are the vibrating parts of atoms or molecules.