Vortex Garten is a garden that alludes to the discovery of levitational force by the naturalist of what nationality?
Vortex Garten The Vortex Garden is a privately owned public garden in the Hessian city of Darmstadt (Germany). It is a pantheistic permaculture garden at the art nouveau area of Mathildenhoehe and alludes to Viktor Schauberger’s discovery of “levitational force” through artistic depictions by internationally renowned sculptors including John Wilkes, Jacopo Foggini, Jerome Abel Seguin and Hyesung Hyun. The garden is the private property of Henry Nold of Darmstadt, but is open to the public.
Patrick d'Arcy Patrick d'Arcy (27 September 1725 – 18 October 1779) was born in the west of Ireland. His family, who were Catholics, suffered under the penal laws. In 1739 d'Arcy was sent abroad by his parents to an uncle in Paris. He was tutored in mathematics by Jean-Baptiste Clairaut, and became a friend of Jean-Baptiste's son, Alexis-Claude Clairaut, (Alexis Clairaut), who was a brilliant young mathematician. d'Arcy made original contributions to dynamics. He is best known for his part in the discovery of the principle of angular momentum, in a form which was known as "the principle of areas," which he announced in 1746. See the article on areal velocity. d'Arcy also had an illustrious military career in the French army. He obtained the title of "Count" in the French nobility. He was a generous patron of Irish refugees in France. In addition to his contributions to dynamics, he performed research on artillery and on electricity. An experiment of his, reported in 1765, on visual perception is often referred to: it involved a rotating disk on which a burning coal was placed; when the disk was spun at an angular velocity exceeding seven revolutions per second, a full circle of light was perceived. This and other experiments makes d'Arcy the first person to demonstrate the illusion of a moving image; although Joseph Plateau greatly elaborated on this initial finding. d'Arcy was elected to the Academie Royale des Sciences in 1749. He died from cholera in Paris in October 1779.