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  1. "File PHYSICAL.MTH, copyright (c) 1990-2000 by Texas Instruments Incorporated"
  2.  
  3. "Fundamental Physical Constants -- Reference: Physics Today, August 1989"
  4.  
  5. "Load METRIC.MTH when using this file."
  6.  
  7. "Speed of light in vacuum:"
  8.  
  9. c_:=299792458*(meter/second)
  10.  
  11. "Newtonian constant of gravitation:"
  12.  
  13. g_:=6.6726*10^(-14)*(meter^3/(gram*second^2))
  14.  
  15. "Planck constant:"
  16.  
  17. h_:=6.6260755*10^(-34)*joule*second
  18.  
  19. "Elementary charge:"
  20.  
  21. e_:=1.60217733*10^(-19)*coulomb
  22.  
  23. "Fine structure constant:"
  24.  
  25. alpha:=0.00729735308
  26.  
  27. "Rydberg constant:"
  28.  
  29. r_inf:=10973731.534/meter
  30.  
  31. "Bohr radius:"
  32.  
  33. a0:=5.29177249*10^(-11)*meter
  34.  
  35. "Mass of an electron, proton, and neutron:"
  36.  
  37. me:=9.1093898*10^(-28)*gram
  38.  
  39. mp:=1.6726231*10^(-24)*gram
  40.  
  41. mn:=1.6749286*10^(-24)*gram
  42.  
  43. "Compton wavelength of an electron, proton, and neutron:"
  44.  
  45. lambda_c:=2.42631058*10^(-12)*meter
  46.  
  47. lambda_cp:=1.32141002*10^(-15)*meter
  48.  
  49. lambda_cn:=1.3195911*10^(-15)*meter
  50.  
  51. "Classical radius of an electron:"
  52.  
  53. re_:=2.81794092*10^(-15)*meter
  54.  
  55. "Avogadro constant:"
  56.  
  57. na:=6.0221367*10^23/mole
  58.  
  59. "Faraday constant:"
  60.  
  61. f_:=96485.309*(coulomb/mole)
  62.  
  63. "Molar gas constant:"
  64.  
  65. r_:=8.314511*(joule/(mole*degree_kelvin))
  66.  
  67. "Boltzmann constant:"
  68.  
  69. k_:=1.380658*10^(-23)*(joule/degree_kelvin)
  70.  
  71. "Stefan-Boltzmann constant:"
  72.  
  73. sigma:=5.67051*10^(-8)*watt/(meter^2*degree_kelvin^4)
  74.  
  75. "Standard acceleration of gravity:"
  76.  
  77. gn:=9.80665*(meter/second^2)
  78.