Tuesday 8 February 2011 7 constants

  1. Avogadro constant - NA - 6.022 136 7(36) x 1023 mol-1
  2. Gravitational constant - GN - 6.672 59(85) x 10-11 m3/(kg s2)
  3. Hubble constant - H0 - 100 h0 km/(s Mpc)
  4. Planck constant - h - 6.626 075 5(40) x 10-34 J s
  5. Wien displacement law constant - b - 2.897 756(24) x 19) x 10-3 m K
  6. Boltzmann constant - k - 1.380 658(12) x 10-23 J/K
  7. fine structure constant - α - 1/137.035 989 5(61)

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