Philosophical Transactions of the Royal Society of London, Volumes 53-54Royal Society of London, 1965 |
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Pagina 117
... wheel , and ( according to fome writers ) the pulley . The ballance I do not confider as a diftinct machine ... wheel it is faftened to a chord that goes round the axle , and the power which , is to raise it is hung to a chord that goes ...
... wheel , and ( according to fome writers ) the pulley . The ballance I do not confider as a diftinct machine ... wheel it is faftened to a chord that goes round the axle , and the power which , is to raise it is hung to a chord that goes ...
Pagina 144
... wheel A be 20 feet diameter , the axis B 1 foot diameter , the pevets f of the axis B 4 inches diameter , and the weight C to be raised by the axis B , 12 tons or 24,000 pounds The power D , in the wheel A , with respect to the weight C ...
... wheel A be 20 feet diameter , the axis B 1 foot diameter , the pevets f of the axis B 4 inches diameter , and the weight C to be raised by the axis B , 12 tons or 24,000 pounds The power D , in the wheel A , with respect to the weight C ...
Pagina 159
... wheel , in a little time , becomes as smooth , and almost as hard as brafs . These wheels cannot be applied to wheel carriages , unless they were to move on very even ground , as fudden jerks , and turnings , would foon diforder them ...
... wheel , in a little time , becomes as smooth , and almost as hard as brafs . These wheels cannot be applied to wheel carriages , unless they were to move on very even ground , as fudden jerks , and turnings , would foon diforder them ...
Inhoudsopgave
VOL LIII | 1 |
Obfervation of the Tranfit of Venus June | 6 |
An Account of a remarkable decrease of the River | 7 |
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aëre alfo almoſt alſo angle becauſe Bologna cafe Caffini Cajaneburg Calmar Cape cauſe compariſons confequently confiderable difference of longitude diſcovered diſeaſe eclipfe egrefs electric equal event experiments faid fame fand fecond feems feveral fhall fhew fide fince firſt foliis fome friction fuch fufficient fuppofed furface gives the Sun's glaſs greateſt Greenwich happen houſe inches increaſed infcription interfection internal contact itſelf Journal des Sçavans laft laſt leaft leaſt diſtance lefs lever LIII likewife longitude mean meaſure Moon's moſt muſcles muſt nitri obferved occafion paffing Paris paſs pevets pevets f Pingré places preſent probability purpoſe quæ quantity raiſed ratio rays reaſon refiftance refpect refraction reft refults Rodrigues Royal Society Samuel Dunn Sea-Pen ſeems ſeveral ſhall ſhe ſhould ſmall ſome ſtate Sun's parallax ſuppoſe thefe theſe thoſe Tobolſk Tornea Tourmalin tranfit Tranquebar Upfal uſed wedge Weft weight wheel whoſe