Sponsored by the Institute of Physics   Constants   A to B   C to D   E to F   G to I   J to L   M   N to Q   R to T   U to Z Equations Periodic Table Conversions Java Structurer SI Units Symbols   Printer Version Science Constants - G to I Gg | Hh | Ii A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z Gg   Name Symbol Value   g-Factor, Electron ge -2.0023193043737(82)    g-Factor, Muon gµ -2.0023318320(13)    g-Factor, Neutron 2µn/µN gn -3.82608545(90)    g-Factor, Proton 2µp/µN gp 5.585694675(57)    Gallon, UK 4.546 × 10-3 m3 1.201 US gallon   Gallon, US 3.785 × 10-3 m3 0.833 UK gallon   Gas Constant R 8.314 J K-1 mol-1   Gas Constant, Molar R 8.314472(15) J mol-1 K-1   Geepound 14.59390294 kg Glass, Refractive Index of ng 1.50    Glass, Thermal Conductivity of kg 1.0 W m-1 K-1   Gold Number φ 1.61803398874989484820    Golden Mean φ 1.61803398874989484820    Golomb-Dickman Constant λ 0.6243299885    Grain 0.06479 g   Gravitation, Newtonian Constant of G G/ħc 6.673(10) × 10-11 m3 kg-1 s-1 6.707(10) × 10-39 (GeV/c2)-2   Gravitational Acceleration, Moon's 1.619 m s-2   Gravitational Constant G 6.673(10) × 10-11 N m2 kg-2   Gravity, Acceleration due to g 9.80665 m s-2 32.1740 ft s-2 Gunter's Chain ch 20.1168 m Gyromagnetic Ratio, Electron γe γe/2π 1.760859794(71) × 1011 s-1 T-1 28024.9540(11) MHz T-1   Gyromagnetic Ratio, Neutron 2|µn|/ħ γn γn/2π 1.83247188(44) × 108 s-1 T-1 29.1646958(70) MHz T-1   Gyromagnetic Ratio, Proton 2µp/ħ γp γp/2π 2.67522212(11) × 108 s-1 T-1 42.5774825(18) MHz T-1   Gyromagnetic Ratio, Shielded Proton 2µp/ħ (H2O, sphere, 25°C) γ'p γ'p/2π 2.67515341(11) × 108 s-1 T-1 42.5763888(18) MHz T-1   Gg | Hh | Ii To the top | To the bottom A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z Hh   Name Symbol Value   Hafner-Sarnak-McCurley Constant 0.3532363719    Half-life of Carbon-14 T 5570 years   Half-life of Free Neutron T 650 s   Hard Square Entropy Constant κ 1.503048082    Hartree Energy Eh 4.35974381(34) × 10-18 J 27.2113834(11) eV   Hectare ha 104 m2 Horizontal Component of Earth's Magnetic Field B0 1.8 × 10-5 T   Hundredweight (UK) cwt 5.08 × 104 g   Hundredweight, Short (US) short cwt 4.535 × 104 g   Hydrogen Rydberg Number RH 1.0967758 × 107 m-1   Gg | Hh | Ii To the top | To the bottom A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z Ii   Name Symbol Value   Impedence of Vacuum, Characteristic Z0 376.730313461 Ω Imperial Pint 5.682 × 10-4 m3   Inch in " 0.254 m   Inch, Cube in3 cu. in. 1.6387064 × 10-5 m3   International Nautical Mile 1852 m   Inverse Conductance Quantum G0-1 12906.403786(47) Ω   Inverse Fine Structure Constant α 137.03599976(50) × 10-3    Gg | Hh | Ii To the top | To the bottom A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] Download | Shop | Contact | About   Page compiled: Wed Sep 05 18:37:52 GMT+01:00 2001