-as of [8 SEPTEMBER 2025]-
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#1
c
“SPEED OF LIGHT”
(in ‘vacuum’)
(electro-magnetic radiation)
(links “space” + “time”)
“distance over time”
“speed”
-[299,792,458 meters per second]-
(less than [300 million] “meters” per “second”)
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#2
h
–“discrete energy” packets-
(rather than a “spectrum”)
-[6.62607015 × 10-34]-
(measured in “joule seconds”)
-measures “action”-
(or “angular momentum”)
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#3
e
(+1 proton / -1 electron)
(used to calculate the coulomb)
-the “coulomb” is [6.642 x 1018] charges-
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#4
NA
(an ‘amount’)
(defines the “amount of particles” in 1 “mole”)
-[6.02214076 × 1023]–
(which was originally based on the amount of atoms in [12 grams] of [carbon-12])
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#5
(relates [energy] to [temperature])
-[1.380649 × 10-23] joules per degree 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 billion’ +)
(this allows us to precisely subdivide the “second” into over 9 billion parts)
-the “caesium transition frequency” defines the “second” based on earth’s orbit around sun-
.
-“earth’s orbit around the sun” uses “earth’s rotation around axis” as the [time unit]-
-1 YEAR-
-365 DAYS-
.
-8760 HOURS-
-[525,600 MINUTES]-
-[31,536,000 SECONDS]-
(OVER “31 MILLION SECONDS” / “YEAR”)
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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* 🔥🔥🔥🔥🔥🔥