Comment on Most Precise Atomic Clock Ever Built Will Only Lose a Second Every 30 Billion Years

Sparkega@sh.itjust.works ⁨5⁩ ⁨months⁩ ago

• xthexder@l.sw0.com ⁨5⁩ ⁨months⁩ ago

  Standard seconds are defined based on measurable properties of a cesium atom. The historical definition of 1/86400th of a day doesn’t work for science if the duration is inconsistent.

  For example the statement:

  Earth’s Days Are Getting 2 seconds Longer Every 100,000 Years becomes self-referencing and loses all meaning without some other reference point.

  source

  • RizzRustbolt@lemmy.world ⁨5⁩ ⁨months⁩ ago

    “I suppose”.

    Boom, now it’s a scientific unit.

    source
• todd_bonzalez@lemm.ee ⁨5⁩ ⁨months⁩ ago

  This is time relative to earth, and the actual passage of time in the universe that we aim to measure doesn’t care about the Earth’s rotation.

  source