SILBERSCHLAG, (JOHANN ESAIS).

Dissertation sur les trois principales Machines de Guerre des Anciens, savoir la Catapulte, La Baliste et L'Onagre, tirées en quelque sorte des ines de Monumens de L'Antiquité tant Grecque que Romaine. On y a joint l'exposé que Vitruve a donné de ses Machines, & on l'a éclairci par les Notes. Traduit du Latin. (+) Sur L'Origine et les Effets des Machines de Guerre que les Anciens nommoient Tormenta. Traduit du Latin. (2 Memoirs).

(Berlin, Haude et Spener, 1767). 4to. No wrappers, as issued in "Mémoires de l'Academie Royale des Sciences et Belles-Lettres", tome XVI, pp. 378-432 a. pp. 433-449. 5 large folded engraved plates, depicting machinery.

Johann Esaias Silberschlag (1721- 1791) was a German Lutheran theologian and natural scientist from Aschersleben, Principality of Halberstadt.

In 1760, he became an external member of the Prussian Academy of Sciences in Berlin, Privy Councillor in the newly founded Office for Public Works, Section of Mechanical Engineering and Hydraulic Engineering. In 1780 Silberschlag observed and described the Brocken bow (also called Brocken spectre). In his book Geonetics or Explanation of the Mosaic Creation according to Physical and Mathematical Foundations (Geogonie oder Erklärung der mosaischen Erderschaffung nach physikalischen und mathematischen Grundlagen) he tried to reconcile theology and science. The lunar crater Silberschlag is named after him. (Wikipedia).

Order-nr.: 43825