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Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

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Name Symbol Value
atomic mass constant mu 1.660539x10-27 kg
Avogadro constant NA 6.022142x1023 /mol
Bohr magneton mB 9.274009x10-24 J/T
Bohr radius a0 5.291772x10-11 m
Boltzmann constant k 1.380650x10-23 J/K
conductance quantum G0 7.748092x10-5 S
electric permittivity constant e0 1/(m0·c2) = 8.85418781...x10-12 F/m
electron Compton wavelength lc 2.426310x10-12 m
electron magnetic moment me 9.284764x10-24
electron radius (classical) re 2.817940x10-15 m
electron rest mass me 9.109382x10-31 kg
electron volt eV 1.602176x10-19 J
elementary charge e 1.602176x10-19 C
Euler's constant g 0.577215664901532...
Faraday constant F 9.648524x104 C/mol
fine-structure constant a 7.297353x10-3
first radiation constant c1 3.741771x10-16 W/m2
golden ratio f 1.618033988749894...
gravitational constant G 6.6732x10-11 N-m2/kg2
Josephson constant KJ 4.835979x1014 Hz/V
magnetic flux quantum F0 2.067834x10-15 Wb
magnetic permeability constant m0 4p x10-7 = 1.2566370614...x10-6 H/m
natural log base e 2.718281828459045...
neutron magnetic moment mn 9.662364x10-27 J/T
neutron rest mass mn 1.674927x10-27 kg
nuclear magneton mN 5.050783x10-27 J/T
pi p 3.14159265358979323846264...
Planck constant h 6.626069x10-34 J-s
proton Compton wavelength lc,p 1.321410x10-15 m
proton magnetic moment mp 1.410607x10-26 J/T
proton rest mass mp 1.672622x10-27 kg
Rydberg constant 1.097373x107 /m
second radiation constant c2 1.438775x10-2 m-K
speed of light in vacuum c 2.99792458x108 m/s
standard volume of ideal gas V0 2.24136x10-2 m3/mol
Stefan-Boltzmann constant s 5.670400x10-8 W/m2-K4
universal gas constant R 8.314472 J/mol-K
Wien displacement law constant b 2.897769x10-3 m-K
Glossary
Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!