The Geometer has the special privilege to carry out, by abstraction, all constructions by means of the intellect..

The Geometer has the special privilege to carry out, by abstraction, all constructions by means of the intellect. Who, then, would wish to prevent me….

winds are produced by differences of air temperature, and hence density, between two regions of earth..

Many have argued that a vacuum does not exist, others claim it exists only with difficulty in spite of the repugnance of nature; I know of no one who….

Is it a surprise that into the vessel, in which the mercury has no inclination and no repugnance, not even the slightest, to being there, it should e….

Living submerged at the bottom of an ocean of air..