Dutch process chocolate or Dutched chocolate, It forms the basis for much of modern chocolate, and is used in ice cream, hot cocoa, and baking. The Dutch process was developed in the early 19th century by Dutch chocolate maker Coenraad Johannes van Houten, whose father Casparus is responsible for the development of the method of removing fat from cacao beans by hydraulic press around 1828, forming the basis for cocoa powder. These developments greatly expanded the use of chocolate, which had been mostly used as a beverage in Europe until that time. Because Dutch process cocoa has a neut...

In mathematics, an ellipse (from Greek ἔλλειψις elleipsis, a "falling short") is a plane curve that results from the intersection of a cone by a plane in a way that produces a closed curve. Circles are special cases of ellipses, obtained when the cutting plane is orthogonal to the cone's axis. An ellipse is also the locus of all points of the plane whose distances to two fixed points add to the same constant. Ellipses are closed curves and are the bounded case of the conic sections, the curves that result from the intersection of a circular cone and a plane that does not pass throug...