 | 1828 - 888 páginas
...Mr. R. Kuchanan, that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers...advantageous manner of applying human strength is in the act of rowing. The most useful of quadrupeds, as a mechanical agent, is the horse. The relative values... | |
 | 1829 - 500 páginas
...Mr. R. Buchanan that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers...advantageous manner of applying human strength is in the act of rowing. The most useful of quadrupeds, as a mechanical agent, is the horse. The relative values... | |
 | 1829 - 522 páginas
...that the same quantity of human labour employed in working a pump, turning a winch, ringing a tjell, and rowing a boat, are as the numbers 100, 167, 227,...advantageous manner of applying human strength is in the act of rowing. The most useful of quadrupeds, as a mechanical agent, is the horse. The relative values... | |
 | Sir John Leslie - 1829 - 556 páginas
...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... | |
 | 1829 - 522 páginas
...Mr. R. Buchanan that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers 100, 1G7, 227, and 248. The most advantageous manner of applying human strength is in the act of rowing.... | |
 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1831 - 650 páginas
...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 - 300 páginas
...however, thinks that six good English labourers will be required to raise 21,141 solid feet of sea-water to the height of four feet in four hours. In this...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 body inclining... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 630 páginas
...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 páginas
...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 =... | |
 | William Grier - 1836 - 380 páginas
...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 24A 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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Buchanan that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers 100, 167, 227, and 248. The most advantageous manner of applying human strength is in the act of rowing. 
