References

         Animated Engines. (n.d.). Retrieved from http://www.animatedengines.com/stirling.html
​         Gras, P. (n.d.). Stirling engine. Retrieved from http://www.robertstirlingengine.com/advandisadvan.php     
         How do Stirling engines work? (2018, December 22). Retrieved from https://www.explainthatstuff.com/how-stirling-engines-work.html
         Stirling engine. (2019, March 23). Retrieved from https://en.wikipedia.org/wiki/Stirling_engine

Image credits

https://www.gyroscope.com/images/thumbnails/ks90_BLA_ASS(1)-1200.jpg
http://www.animatedengines.com/stirling.html
​https://www.sci-supply.com/v/vspfiles/photos/SS1022-2T.jpg
​https://upload.wikimedia.org/wikipedia/commons/thumb/6/60/Stirling_Cycle_color.svg/220px-Stirling_Cycle_color.svg.png
https://calistry.org/New/sites/all/libraries/ckeditor//plugins/ckeditor_wiris/integration/showimage.php?formula=8f76fb5f8902e711fe093abe124799f9.png
​https://blueocean.ca/wp-content/uploads/2017/02/Weighing-the-Pros-and-Cons-of-Cross-Trained-Contact-Center-Agents.png