Remains the Same?
While visiting a local restaurant I noticed that their placemats advertised that they remained “almost the same” as when they started in 1934. One of the pictures showed a photograph of their milkshake machine in 1934 and their present day machine. It was basically the same.
http://www.steaknshake.com/history.asp
Challenge: Find an object that has changed very little since it was originally invented. Why has it lasted so long? Any variations?
Please include a link for readers to learn more.
