text: Many common substances exhibit non-Newtonian flows. These include:
  * Soap solutions, cosmetics, and toothpaste
  * Food such as butter, cheese, jam, mayonnaise, soup, taffy, and yogurt 
  * Natural substances such as magma, lava, gums, honey, and extracts such as vanilla extract
  * Biological fluids such as blood, saliva, semen, mucus, and synovial fluid
  * Slurries such as cement slurry and paper pulp, emulsions such as mayonnaise, and some kinds of dispersions