The Table Talk and Omniana; With Additional Table Talk from Allsop's "Recollections," and Manuscript Matter Not Before Printed

The Table Talk and Omniana; With Additional Table Talk from Allsop's "Recollections," and Manuscript Matter Not Before Printed

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 edition. Excerpt: ...or molecules penetrable-with the same, a legitimate hypothesis. It is a mere suffiction. Newton took the fact of bodies falling to the centre, and upon that built up a legitimate hypothesis. It was a subposition of something certain. But Descartes' vortices were not an hypothesis; they rested on no fact at all; and yet they did, in a clumsy way, explain the motions of the heavenly bodies. But your subtle fluid is pure gratuitous assumption; and for what use? It explains nothing. Besides, you aro endeavouring to deduce power from, mass, in which you expressly say there is no power but the vis inertias; whereas, the whole analogy of chemistry proves that power produces mass. The use of a theory in the real sciences is to help the investigator to a complete view of all the hitherto discovered facts relating to the science in question; it is a collected view, Btwpia, of all he yet knows in one. Of course, whilst any pertinent facts remain unknown, no theory can be exactly true, because every new fact must necessarily, to a greater or less degree, displace the relation of all the others. A theory, therefore, only helps investigation; it cannot invent or discover. The only true theories are those of geometry, because in geometry all the premisses are true and unalterable. But, to suppose that, in our present exceedingly imperfect acquaintance with the facts, any theory in chemistry or geology is altogether accurate, is absurd: --it cannot be true. Mr. Lyell's system of geology is just half the truth, and no more. He affirms a great deal that is true; and he denies a great deal which is equally true; which is the general characteristic of all systems not embracing the whole truth. So it is with the rectilinearity or nndulatory motion of light;--I more

Product details

  • Paperback | 164 pages
  • 189 x 246 x 9mm | 304g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236573781
  • 9781236573780