Abstract
Egglipse was first explored by Maxwell, but Descartes discovered a way to modify the pins-and-string construction for ellipses to produce more egg-shaped curves. There are no examples of serious scientific and practical applications of Three-foci ellipses until now. This situation can be changed if porcelain and ellipses are combined. In the introduced concept of the egg-ellipse, unexplored points are observed. The new Three-foci ellipse with an equilateral triangle, a square, and a circle as “foci” are presented for this application and can be transformed by animation. The new elliptic-hyperbolic oval is presented. The other two similar curves, hyperbola and parabola, can be also used to create new porcelain designs. Curves of the order of 3, 4, 5, etc. are interesting for porcelain decoration. An idea of combining of 3D printer and 2D colour printer in the form of 2.5D Printer for porcelain production and painting is introduced and listings functions in Mathcad are provided.
Highlights
The inventor of European white porcelain is Count Ehrenfried Walther von Tschirnhaus (1651–1708), who at the turn of the 17th and 18th centuries conducted experiments in Saxony on the creation of porcelain, and organized its production in Meissen near Dresden
Some historians believe that the real inventor of European white porcelain was not the aristocrat Tschirnhaus, but the monk-alchemist Johann Friedrich Böttger (1682–1719)
Using as a focus of the ellipse a circle instead of a point does not change anything in the form of
Summary
The inventor of European white porcelain is Count Ehrenfried Walther von Tschirnhaus (1651–1708), who at the turn of the 17th and 18th centuries conducted experiments in Saxony on the creation of porcelain, and organized its production in Meissen near Dresden. Some historians believe that the real inventor of European white porcelain was not the aristocrat Tschirnhaus, but the monk-alchemist Johann Friedrich Böttger (1682–1719). After the death of Tschirnhaus Böttger appropriated the laurels of the inventor of European porcelain and was locked up because he once tried to sell the secret of making porcelain to Prussia, this attempt was suppressed. These medieval “non-chemists” tried, in particular, to get the philosopher’s stone—a reagent necessary for the transformation of inexpensive metals into gold
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