 | James Ferguson - 1764 - 322 pages
...pump-plate LZ. (Fig. i.) draw «p the flider d to the pins on one fide, and fet the fpring c at bend which are of equal weights, independent of each other,...or fails, fixed into the axis: thofe of the mill# have their planes at right angles to its axis, and thofe of b have their planes parallel to it. Therefore,... | |
 | John Imison - 1796 - 476 pages
...air. To fhew the refiftance of the air. There is a little machine, confifting of two mills, a and b, which are of equal weights, independent of each other, and turn equally free on their axles in the frame. Each mill has four thin arms or fails fixed into the axis : thofe of the mill a... | |
 | Thomas Hodson - Education - 1802 - 556 pages
...turning freely on its own axis, independent of each other. Each mill has four thin fails fixed to iti axis ; thofe of the mill a have their planes at right...of b have their planes parallel to it. Therefore, when thefe mills turn round in common air, the mill a has but little retiftance from the air, becaufe... | |
 | Thomas Hodson - Arithmetic - 1806 - 488 pages
...turning freely on its own axis, independent of each other. Each mill has four thin fails fixed to its axis ; thofe of the mill a have their planes at right...of b have their planes parallel to it. Therefore, when thefe mills turn round in common air, the mill a has but little refiftance from the air, becaufe... | |
 | William Nicholson - 1809 - 716 pages
...to the same height as it stands in the barometer. There is a little machine, consisting of two vanes of equal weights, independent of each other, and turn equally free on their axles in tlie frame. Each vane has four thin arms or sails fixed into the axis : those of the one have... | |
 | William Nicholson - Natural history - 1809 - 684 pages
...to the same height as it stands in the barometer. There is a little machine, consisting of two vanes of equal weights, independent of each other, and turn equally free on their axles in the frame. Each vane has tour thin arms or sails fixed into the axis : those of the one have... | |
 | James Ferguson - Astronomy - 1814 - 420 pages
...To show the resistance of the air. 1. "There is a little machine, consisting of jwo millS, a ami jf, which are of equal weights, independent of each other,...axes in the frame. Each mill has four thin arms or sails, fixed into the axis : those of the mill a have their planes at right angles to its axis, and... | |
 | William Nicholson - Natural history - 1821 - 376 pages
...the same height as it stands in the barometer. Tli ere is a little machine, consisting of two vanes of equal weights, independent of each other, and turn equally free on their axles in the frame. Each vane has four thin arms or nils fixed into the axis . those of the one have... | |
 | John Imison - Art - 1822 - 528 pages
...equally free on their axles in the frame. Eachmftl has four thin arms or sails fixed into the axis: those of the mill a have their planes at right angles to its axis, and those of b have their planes parallel to it. Therefore, as the mill a turns round in common air, it... | |
 | James Ferguson - Astronomy - 1839 - 554 pages
...1. To shew the Resistance of the Air. 1. There is a little machine consisting of two mills, a and b, which are of equal weights, independent of each other,...axes in the frame. Each mill has four thin arms or sails, fixed into the axis : those of the mill a have their planes at right angles to its axis, and... | |
| |
... in the frame. Each mill has four thin arms or sails, fixed into the axis : those of the mill a have their planes at right angles to its axis, and those of... 