Ehrenfried Walther von Tschirnhaus, German mathematician, physicist, and physician (died 1708)

Ehrenfried Walther von Tschirnhaus or Tschirnhauß was a German mathematician, physicist, physician, and philosopher. He introduced the Tschirnhaus transformation and is considered by some to have been the inventor of European porcelain, an invention long accredited to Johann Friedrich Böttger but others claim porcelain had been made by English manufacturers at an even earlier date.