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NAME
SYMBOL
VALUE
Constant, Gravitational
G
6.673(10) × 10
-11
N m
2 kg
-2
Constant, Inverse Fine Structure
α
137.03599976(50) × 10
-3
Constant, Loschmidt
n
0
2.6867775(47) × 10
25
m
-3
Constant, Loschmidt (T=273.15K, p=100kPa)
V
m
22.710981(40) × 10
-3
m
3
mol
-1
Constant, Magnetic
µ
0
4π × 10
-7
N A
-2
12.566370614 × 10
-7
N A
-2
Constant, Planck (h)
h
6.62606876(52) × 10
-34
J s
4.13566727(16) × 10
-15
eV s
Constant, Sackur-Tetrode
S
0
/R
-1.1517048(44)
-1.1648678(44)
Constant, Solar
1400 W m
-2
Constant, Stefan-Boltzmann (π
2
/60)k
4
/ħ
3
c2
σ
5.670400(40) × 10
-8
W m
-2
K
-4
Constant, von Klitzing
R
K
25812.807572(95) Ω
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