-as of [21 SEPTEMBER 2024]–
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#1
c
“SPEED OF LIGHT”
(in ‘vacuum’)
(electro-magnetic radiation)
(links ‘space’ + ‘time’)
*299,792,458 meters per second*
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#2
h
“discrete energy ‘packets’*
(rather than a ‘spectrum’)
(measured in “joule seconds”)
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#3
e
(+1 proton / -1 electron)
(used to calculate the ‘coulomb’)
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#4
NA
(an ‘amount’)
(the ‘reciprocal’ of the ‘mole’)
the ‘mole’ being ‘6.022 140 76’ × 1023
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#5
(relates ‘energy’ to ‘temperature’)
*1.380 649 × 10−23 ‘joule’ per ‘kelvin’*
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#6
(used to define ‘time’)
(measured in ‘hertz’)
(‘cycles’ per ‘second’)
*the ‘ground state hyper-fine structure transition frequency’ of the caesium-133 atom ΔνCs is exactly 9,192,631,770 hertz (Hz)*
(that’s ‘9 trillion’ +)
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#7
*measures ‘brightness’*
*the luminous efficacy Kcd of mono-chromatic radiation of frequency 540×1012 Hz (540 THz) – a frequency of green-colored light at approximately the ‘peak sensitivity’ of the ‘human eye’ – is exactly 683 lumens per watt (lm⋅W−1)
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*👨🔬🕵️♀️🙇♀️*SKETCHES*🙇♂️👩🔬🕵️♂️*
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👈👈👈☜*’INTERNATIONAL SYSTEM’ OF ‘QUANTITIES’* ☞ 👉👉👉
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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥