[rendall]

Ha! That's marvelous. The rants on `mol`, `hertz` and `candela` are astonishing. Well worth the price.

  // WARNING:  Use of "Hz" will cause communication problems, errors, and make
  // one party or another look insane in the eyes of the other.
  //
  // In other words, if you use the Hz in the way it's currently defined by the 
  // SI, as equivalent to 1 radian/s, you can point to the SI definitions and
  // prove that you follow their definitions precisely.  And your physics 
  // teacher will *still* fail you and your clients will think you're completely
  // incompetent because 1 Hz = 2 pi radians/s.  And it has for centuries.
  // You are both simultaneously both right and both wrong.  
  // You cannot win.
  // You are perfectly right.  You are perfectly wrong.  You look dumb and
  // unreasonable.  The person arguing the opposite looks dumb and unreasonable.
  //
  // Hz == YOU CANNOT WIN
  //
  // (Insert "IT'S A TRAP" image here.)