 | 1828 - 888 pages
...men differ with the manner in which these efforts are employed. It has been shown by Mr. R. Kuchanan, that the same quantity of human labour employed in...The relative values of the labour of a horse and man arc variously stated. Some estimate them as five to one, some six to one, and some seven to one. Perhaps... | |
 | Sir John Leslie - 1829 - 556 pages
...Mr Buchanan, the exertions of a man in working a pump, in turning a winch, in ringing a bell, and in rowing a boat, are as the numbers 100, 167, 227, and 248. But those efforts appear to have been continued for no great length of time. The Greek seamen in the... | |
 | John Timbs - 1831 - 302 pages
...R. Buchanan, that the same quantities of human labour employed in working a pump, turning a wheel, ringing a bell, and rowing a boat, are as the numbers...advantageous manner of applying human strength is in the art of rowing. — The strength of an ordinary man walking in an horizontal direction, and with his... | |
 | Charles Knight - 1831 - 324 pages
...R. Buchanan, that the same quantities of human labour employed in working a pump, turning a wheel, ringing a bell, and rowing a boat, are as the numbers...advantageous manner of applying human strength is in the art of rowing. — The strength of an ordinary man walking in an horizontal direction, and with his... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1831 - 650 pages
...Mr. Buchanan, the exertions of a man in working a pump, in turning a winch, in ringing a bell, and in rowing a boat, are as the numbers 100, 167, 227, and 248. But those efforts appear to have been continued for no great length of time. The Greek seamen, in the... | |
 | John Timbs - 1832 - 362 pages
...R. Buchanan, that the same quantities of human labour employed in working a pump, turning a wheel, ringing a bell, and rowing a boat, are as the numbers...advantageous manner of applying human strength is in the art of rowing. — The strength of an ordinary man walking in an horizontal direction, and with his... | |
 | John Timbs - 1832 - 332 pages
...R. Buchanan, that the same quantities of human labour employed in working a pump, turning a wheel, ringing a bell, and rowing a boat, are as the numbers...advantageous manner of applying human strength is in the art of rowing. — The strength of an ordinary man walking in an horizontal direction, and with his... | |
 | John M. Moffat - 1834 - 530 pages
...1'rom some experiments made by Mr. Robertson Buchanan, it was ascertained that the labour of a man employed in working a pump, turning a winch, ringing a bell, and rowing a boat, might be represented respectively by the numbers 100, 167, 227, and 248. Hence it appears that the... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 630 pages
...Mr. Buchanan, the exertions of a man in working a pump, in turning a winch, in ringing a bell, and in rowing a 'boat, are as the numbers 100, 167, 227, and 248. But those efforts appear to have been continued for no great length of time. The Greek seamen, in the... | |
 | William Grier - 1836 - 384 pages
...Robertson Buchanan states, that the mechanical effects of men in working a pump, in turning a winch, in ringing a bell, and rowing a boat, are as the numbers 100, 167, 227, and 248. According to Hatchette, of a man working at the cord of a pully to raise the ram of a pile engine =... | |
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... feet in a minute. The efforts of men differ with the manner in which these efforts are employed. It has been shown by Mr. R. Buchanan, that the same... 
