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Constants

Legacy Constants

NameSymbolValueUncertaintyUnitsXlink.png Link
Archimedes\pi3.141 592 653 …Wikipedia
Planckh4.135 667 696exact(eV∙s) x10-15NIST
Boltzmannk_{\sf{B}}8.617 3430.000 015(MeV∙K-1) x10-11NIST
Speed of Lightc299 792 458exact(m∙s-1)NIST
Elementary Chargee1.602 176 620 80.000 000 009 8(C) ???−??NIST
Magnetic\mu_{\sf{o}}1.256 637 062 120.000 000 000 19(N∙A-2) ???−6NIST
Electric\epsilon_{\sf{o}}8.854 187 812 80.000 000 001 3(F⋅m−1) ???−12NIST
Coulombk_{\sf{e}}8.987 551 788 70.000 000 001 4(N∙m2/C2) ???9Wikipedia
AvogadroN_{\sf{A}}6.022 140 8570.000 000 074(mol−1) ×1023NIST
(J) ↔︎ (eV)J/eV1.602 176 620 80.000 000 009 8(J/eV) x10-19NIST
Rydberg{\mathcal{R}}_{\infty}13.605 693 0090.000 000 084(eV)/hcNIST
Sommerfeld\alpha7.297 352 56930.000 000 0011x 10-3NIST
Bohra_{\sf{o}}5.291 772 109 030.000 000 000 80(m) x 10-11NIST

Reference Sensation Constants

IconReferenceSymbolValueUnitsArticle
achromatic.jpgseeing the SunU ^{ \sf{d} }734(neV)Internal Energy
Bangladeshi.GIFseeing blood\mu_{\sf{o}}1.3 \times 10^{-6}(N∙A-2)Magnetic Moments
Swedish.gifseeing gold\epsilon_{\sf{o}}8.8 \times 10^{-12}(F⋅m−1)
knut.jpegtouching iceT ^{ \sf{b} }0(℃)Temperature
steam.jpgtouching steamT ^{ \sf{c} }100(℃)Temperature
odd.jpghearing a heartbeatN_{\sf{\Omega}}^{ \mathbf{\Theta}}86,400(s/day)Counting Bundles
sweeticon.jpgtasting honeyk_{\sf{\, dextro}}40.21(neV)Hydrogen – Fine
sweeticon.jpgtasting honeyk_{\sf{\, levo}}-1.25(µeV)Hydrogen – Fine
earth.jpgtouching the Earthh4.1 x10-15(eV∙s)Planck’s Postulate
earth.jpgtouching the Earthk_{\alpha \beta}noneMetrics
The Terrestrial Metric
centripetal component k_{zz}1
electric component k_{ee}-0.0152286648
magnetic component k_{mm}+0.7453740340
electromagnetic component k_{em}-0.9292374609
electroweak component k_{ez}+1.5428187522
magnetoweak component k_{mz}-1.2742065050

Secondary Constants

SymbolNameValueUnitsLink
kCcalorimetric reference sensationhypotheticalSpecific Energy
kTthermometric reference sensationhypotheticalVis Viva
k _{\sf{F}}background pressure(MeV∙m-1)Quark Models
kτmean life of hydrogen2.60534685 x 1056(s)Lifetime
mHatomic mass of hydrogen1.6735575 x 10-27(kg)Chem Libretexts

Adjustable Parameters

Internal Energy
 \zeta \mathsf{Z} \widetilde{U}^{\mathsf{Z}}(eV)
1U242 926 032 _{\bullet}
2D-0 _{\bullet}000 027 2
3E-31 966 250 _{\bullet}
4G298 359 162 _{\bullet}
5M1 185 795 604 _{\bullet}
6A3 122 059 _{\bullet}
7T149 556 239 _{\bullet}
8B-85 011 771 _{\bullet}
9S50 119 218 _{\bullet}
10C-53 062 870 _{\bullet}
11-2 _{\bullet}22
12-1 _{\bullet}80
13-2 _{\bullet}11
14-2 _{\bullet}55
15-0 _{\bullet}028 8
16-0 _{\bullet}049 0
Temperature
 \zeta \mathsf{Z} T (℃)
1U-815
2D-1,034
3E676
4G-1,185
5M-6,401
6A6,529
7T222
8B0
9S-252
10C100
11?
12?
13?
14?
15?
16?

Conjugate Differences

of Internal Energy in (µeV)

 \zeta \mathsf{Z} \Delta U ^{\mathsf{Z}}
1U12.2
2D-1.10
3E-0.024
4G209
5M-290
7T78.3
8B78.1
9S1.60
10C4.36
15?
1639.0

all others

0
The fine hydrogen spectrum is explained by the transition characteristics listed in this spreadsheet screen-shot.