The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon . -guage used by the Marquis, would lead to the suppositionthat he had not only read but copied the passage. It is difficult to reconcile the statement he has heremade, with the declaration on the title page, of hisinventions having been tried and perfected. In thissingle instance, he leaves the reader to Be pleased tojudge the consequence. Dr. Desaguliers, in a memoir, published by the RoyalSociety, vol. 31, 1720-21, quoting the
The life, times, and scientific labours of the second Marquis of Worcester : to which is added a reprint of his Century of inventions, 1663, with a commentary thereon . -guage used by the Marquis, would lead to the suppositionthat he had not only read but copied the passage. It is difficult to reconcile the statement he has heremade, with the declaration on the title page, of hisinventions having been tried and perfected. In thissingle instance, he leaves the reader to Be pleased tojudge the consequence. Dr. Desaguliers, in a memoir, published by the RoyalSociety, vol. 31, 1720-21, quoting the foregoing article,ventures the reply: Now the consequence of this,and such like machines [assuming them to be as above 454 THE CENTURY, described,] is notliing less than a perpetual course he does not admit even the possibility of suchan an-angements of parts, he only allows that if thatcould be executed, the other would follow. But Desa-guliers admitted too much, for it may easily be demon-strated that the conditions stated may be mechanicallyproduced, without any resulting motion. Let the an-nexed diagram represent a wheel of 14 feet in diameter, l-. having 40 spokes, seven feet each, and with an innerrim coinciding with the periphery, at one foot distance,all round. Next provide 40 balls or weights, hangingin the centre of cords or chains two feet long. Nowfasten one end of this cord at the top of the centre spokeC, and the other end of the cord to the next right handspoke one foot below the upper end, or on the inner ring ;proceed in like manner with every other spoke in suc-cession ; and it will be found, that, at A, the cord willhave the position shown outside the wheel; while at B,C, and D, it will also take the respective positions, asshown on the outside. The result in this case will be,that, all the weights on the side A, C, D, hang to thegreat, or outer circle, while on the side B, C, D, all theweights are suspended from the lesser or inner circle. WITH NO
Size: 1661px × 1504px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectinventions, bookyear1
