ly move in a horizontal direction. was made to the fine five inch telescope belonging to side in the locality of the engine, and a reaction pres- A series of experiments were carried out with the in- Mr. A. E. Beach, one of the proprietors of the Scien- sure downward on the port side ; or, in other… … usual way. mensions steadily grew, the Pneumatic cylinders are period of the vibrations be- PNEUMATIC FOCUSING APPARATUS FOR TELESCOPES. supported under the free came steadily longer, while ends of the levers by arms the necessary greater en- attached to the base plate. gine power, which was re- 1…
Patents · Munn · Columbian · Cable · Scientific American · Electric motor · Carpet beetle · Horse power · Mount sinai · Wind mill · Express money · Railway rail · Trial trip · Bering sea
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![An illustration from Essai de physique, par Mr. Pierre van Musschenbroek ... avec une description de nouvelles sortes de machines pneumatiques, et un recueil d'expériences par Mr. J. v[an] M[usschenbroek] Traduit du hollandois par Mr. Pierre Massuet .. (1751)](https://img.insideoutlibrary.com/img/200/ia-essaidephysiquep02muss-165-43.webp)
