The Living Age Volume 228

The Living Age Volume 228

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 edition. Excerpt: ...of the most momentous changes which have occurred in the world's history since the last century dawned. How have they been brought about? M. Maurice Levy, in one of those allocations-always so admirable in thought and style-pronounced by the President of the French Academy of Sciences at the annual public meeting held each December, answered the question for us last month. Let us never forget that if applied mechanics has arrived to-day at such marvellous results, if we can now calculate beforehand the parts of the most complex machines, it is because long ago the shepherds of Chaldea and Judea observed the stars; because Hipparchus combined their observations with his own and handed them down to us; because Tycho-Brahe made better ones; because two thousand years ago a great geomcter, Appolonius of Perga, wrote a treatise on conic sections, regarded for many centuries as useless; because the genius of Kepler, utilizing this admirable work and the observations of Tycho-Brahe, gave us those sublime laws which themselves have been considered useless by the utilitarians; and, finally, because Newton discovered the iaw of universal gravitation. From this discovery of Newton, M. Levy points out, first came the study of Celestial Mechanics, from which was derived later General Mechanics. from which again, later still, Industrial Mechanics, which is now applied every dayyhas taken its origin, He adds: It is well to impress the fact that Industrial Mechanics has come down from heaven, upon the utilitarians; upon those who appreciate science only so far as it can be immediately profitable to them; who are always complaining that too much is taught at school, and who regard-as superfluous everything they cannot find in a formulary, manual more

Product details

  • Paperback | 478 pages
  • 189 x 246 x 24mm | 844g
  • United States
  • English
  • black & white illustrations
  • 1236799925
  • 9781236799920