Publisher Information: Dortmund: Mallinckrodt, 1804.
Benzenberg, Johann Friedrich (1777-1846). Versuche über das Gesetz des Falls, über den Widerstand der Luft und über die Umdrehung der Erde . . . 8vo. xii, 423, 432a-432h, 433-542, pp. Additional engraved title and 8 plates, including frontispiece. Dortmund: Mallinckrodt, 1804. 206 x 127 mm. 19th century mottled boards, handwritten paper spine label, light wear at spine. Minor dampstaining and foxing but very good. Library stamps on engraved title. Marginal notes in pencil in an early hand on several leaves, pencil drawing on one plate.
First Edition. Benzenberg, a German astronomer, was one of a number of scientists at the turn of the nineteenth century who conducted falling-body experiments to demonstrate the earth’s rotation and show the accuracy (or lack thereof) of theoretical predictions regarding the earth’s motion. Benzenberg’s first experiments were performed in 1802 from a church steeple in Hamburg (illustrated in the frontispiece); he followed these in 1804 with experiments conducted in a mine shaft. Benzenberg was responding in part to the work of Italian physicist Giovanni Baptista Guglielmini (1763-1817), who published his experimental research on the earth’s rotation in 1789 and 1792.Book Id: 34879