Posts Tagged ‘perfection0mg’

2019 redefinition of the SI base units – Wikipedia

June 22, 2019

https://en.wikipedia.org/wiki/2019_redefinition_of_the_SI_base_units Kg in terms of photon energy and time

Why Atomic Clocks Are the Most Reliable Timekeepers in the World

May 26, 2019

https://io9.gizmodo.com/why-atomic-clocks-are-the-most-reliable-timekeepers-in-1664992660

time – Why is a second equal to the duration of exactly 9,192,631,770 periods of radiations? – Physics Stack Exchange

May 26, 2019

https://physics.stackexchange.com/questions/243144/why-is-a-second-equal-to-the-duration-of-exactly-9-192-631-770-periods-of-radiat/243162

9192631770

Second – Wikipedia

May 26, 2019

https://en.wikipedia.org/wiki/Second

Our Units of Measurement Are Finally About to Get an Upgrade

May 26, 2019

https://www.sciencealert.com/our-units-of-measurement-are-finally-getting-an-upgrade

Units of Measurement | Boundless Chemistry

May 26, 2019

https://courses.lumenlearning.com/boundless-chemistry/chapter/units-of-measurement/

QT:{{”
What are the 7 fundamental units?
The SI system, also called the metric system, is used around the world. There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd).
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William Shockley – Wikipedia

May 16, 2019

https://en.wikipedia.org/wiki/William_Shockley

QT:{{”
William Bradford Shockley Jr. (February 13, 1910 – August 12, 1989) was an American physicist and inventor. Shockley was the manager of a research group at Bell Labs that included John Bardeen and Walter Brattain. The three scientists were jointly awarded the 1956 Nobel Prize in Physics for “their researches on semiconductors and their discovery of the transistoreffect”.

As a result of Shockley’s attempts to commercialize a new transistor design in the 1950s and 1960s, California’s “Silicon Valley” became a hotbed of electronics innovation. In his later life, Shockley was a professor of electrical engineering at Stanford University and became a proponent of eugenics.[1][2]
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Roger L. Easton – Wikipedia

May 16, 2019

https://en.wikipedia.org/wiki/Roger_L._Easton

GPS

Interferometry – Wikipedia

May 16, 2019

https://en.wikipedia.org/wiki/Interferometry

Jean Hoerni – Wikipedia

May 16, 2019

https://en.wikipedia.org/wiki/Jean_Hoerni

QT:{{”
At Fairchild, Hoerni invented the planar process,[3][4]which was critical in the invention of Silicon Integrated circuit by Robert Noyce.[5] With Noyce, Jack Kilby from Texas Instruments is usually credited with the invention of the integrated circuit, but Kilby’s IC was based on Germanium.
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