The Principles of Science: a Treatise On Logic And Scientific Method
The Principles of Science: a Treatise On Logic And Scientific Method
Jevons, William Stanley, 1835-1882
The book The Principles of Science: a Treatise On Logic And Scientific Method was written by author Jevons, William Stanley, 1835-1882 Here you can read free online of The Principles of Science: a Treatise On Logic And Scientific Method book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Principles of Science: a Treatise On Logic And Scientific Method a good or bad book?
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A beautiful instance of avoiding the use of a zero point is found in Mr. E. J. Stone's observations on the radiant heat of the fixed stars. The difficulty of these observations arose from the comparatively great amounts of heat which were sent into the telescope from the atmosphere, and which were sufficient to disguise almost entirely the feeble heat rays of a star. But Mr. Stone lixed at the focus of his telescope a double thermo-electric pile of which the two parts Avere reversed in order. N...ow any disturbance of temperature which acted uniformly upon both piles pro- duced no effiict upon the galvanometer needle, and when the rays of the star were made to fall alternately upon one pile and the other, the total amount of the deflection represented double the heating power of the star. Thus Mr. Stone was able to detect with much certainty a heating effect of the star Arc turns, which even when concentrated by the telescope amounted only to o°"02 Fahr., and which represents a heating effect of the direct ray of only about o°"O0000 1 37 Fahr., equivalent to the heat which would be received from a three-inch cubic vessel full of boiling water at the distance of 400 yards.^ It is probable that ' Gauss, Taylor's Scientific Memoirs, vol.
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