The cesium standard - Deepstash
The cesium standard

The cesium standard

Determining how many ticks of a caesium atom were in a second, the conference used the most precise astronomical measurement of a second available at the time. 

They started with the number of days in a year and divided it down. Compared to the atom’s ticking rate, one second was defined as exactly 9,192,631,770 ticks of a caesium-133 atom.

19

265 reads

CURATED FROM

IDEAS CURATED BY

sebastian_m

“Efficiency is doing better that what is already being done.” Peter Drucker

The idea is part of this collection:

Centers of Progress

Learn more about videos with this collection

The historical significance of urban centers

The impact of cultural and technological advances

The role of urban centers in shaping society

Related collections

Similar ideas to The cesium standard

The Old Productivity Formula

The basic productivity formula(productivity= output divided by input) worked well in the industrial age as the output and input were clearly defined and measurable.

Today’s leaders need innovative solutions to measure and improve productivity in a knowledge-based workplace, as the...

End of the Gold Standard - March 3, 1933 - August 15, 1971

End of the Gold Standard - March 3, 1933 - August 15, 1971

On March 3rd 1933, President Franklin D. Roosevelt closed all the banks in the U.S.A. 

Banks held large amounts of Gold which were backing all the available U.S dollars. At those times there was a fixed exchange rate between U.S dollars and Gold.

Gold standard ended officially when pr...

Read & Learn

20x Faster

without
deepstash

with
deepstash

with

deepstash

Personalized microlearning

100+ Learning Journeys

Access to 200,000+ ideas

Access to the mobile app

Unlimited idea saving

Unlimited history

Unlimited listening to ideas

Downloading & offline access

Supercharge your mind with one idea per day

Enter your email and spend 1 minute every day to learn something new.

Email

I agree to receive email updates