A collection of various awesome numbers
- Pi: 3
- Speed of light: 3 x 108 m/s
- Planck's constant: 7 x 10-34 J s
- Elementary charge: 2 x 10-19 C
- Avogadro's constant: 6 x 1023
- Boltzmann's constant: 1 x 10-23 J/K (= R/NA)
- Stefan-Boltzmann constant: 6 x 10-8 W m-2 K-4
- Universal gravitational constant: 7 x 10-11 m3 kg-1 s-2
- Universal gas constant = 8 J/mol K
- Atomic radius: 1 angstrom = 10-10 m
- Electron binding energy: 3 eV
- Mass of an electron: 10-30 kg
- Mass of a proton: 2000 x melectron
- Mass of a neutron: same as proton
- Radius of a proton: 10-15 m
- World Population: 6 x 109
- US Population: 3 x 108
- Mass of Earth: 6 x 1024 kg
- Radius of Earth: 6 x 106 m
- Radius of Earth's orbit: 8 light minutes
- Solar constant: 1 x 103 W/m2
- Atmospheric sea level pressure: 1 x 105 Pa
- Gravitational acceleration: 10 m/s2
- Radius of sun: 102 Rearth
- Radius of moon: 1/4 Rearth
- Radius of Mars: 1/2 Rearth
- Radius of Venus: 1 Rearth
- Radius of Jupiter: 10 Rearth
- Density: 1 x 103 kg/m3
- Dynamic viscosity: 1 x 10-3 Pa s
- Heat capacity: 4 x 103 J/kg K
- Latent heat of vaporization: 2 x 106 J/kg
- Latent heat of fusion: 3 x 105 J/kg
- Density: 1 kg/m3
- Dynamic viscosity: 1 x 10-5 Pa s
- Heat capacity: 1 x 103 J/kg K
- Density: 4 x 103 kg/m3
- Dynamic viscosity: 1019 to 1024 Pa s
- Heat capacity: 1 x 103 J/kg K
- Thermal expansivity: 10-4 K-1
- Thermal diffusivity: 10-6 m2/s
- Silicate heat production: 10-11 W/kg
- Aerobic respiration: 500 kJ/mole of carbon
- Mammal power consumption: 1 W/kg
- Foods like fats and carbohydrates have an energy content of 5 to 10 kcal/g.
- Redfield Ratio C:N:P is 100:10:1
- US per capita power consumption: 10 kW
- Global per capita power consumption: 2 kW
- Mean incident solar radiation: 300 W
- Nuclear fusion: 1 MeV/nucleon/atomic mass [Note: this is per atomic mass basis and also different from the notes]
- Nuclear fission: 10-2 MeV/nucleon/atomic number [Note: this is per atomic number basis]