title: Library for Physical and mathematic constants and basic conversions in c# .net
body: <p>I saw we can get the value of PI thanks to <code>Math.PI</code> in C#. </p>
  
  <p>Do you know if exists a library or a package for getting rounded values for other famous constants, like for example, Avogadroo, Kelvin, Planck, Coulombs, golden number, Newton constant?</p>
  
  <p>It would be very greate if we could do some simple convertions.</p>
  
  <p>In other world: a light moment.js for sciences, it would save a lot of time to a lot of people.</p>