flux vs puddling

flux

noun
  • The act of flowing; a continuous moving on or passing by, as of a flowing stream. 

  • The rate of transfer of energy (or another physical quantity), especially an electric or magnetic field, through a given surface. 

  • A state of ongoing change. 

  • The state of being liquid through heat; fusion. 

  • A chemical agent for cleaning metal prior to soldering or welding. 

adj
  • Flowing; unstable; inconstant; variable. 

verb
  • To flow as a liquid. 

  • To use flux on. 

  • To melt. 

puddling

noun
  • The action of forming a puddle. 

  • The act of lining a canal with puddle to make it watertight. 

  • The first true industrial process to produce steel from pig iron. 

  • A group of mallards (ducks). 

  • A behaviour in which animals like butterflies seek out moist substances to obtain nutrients. 

  • The process of working clay, loam, pulverized ore, etc., with water, to render it compact, or impervious to liquids. 

How often have the words flux and puddling occurred in a corpus of books? (source: Google Ngram Viewer )