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" ... either be of a certain degree of force, or of a certain degree of magnitude. For this... "
A Compleat System of Opticks in Four Books, Viz. A Popular, a Mathematical ... - Page 146
by Robert Smith - 1738 - 171 pages
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The History of the Works of the Learned ..., Volume 7

Bibliography - 1740 - 480 pages
...made by an Object upon any of our Senfes, the " Impreffion muft be either of a certain Degree of <k Force, or of a certain Degree of Magnitude. For Inftance,...Rain, may fall upon the Hand without our feeling it wet j and a very fmall Particle of Sugar may be laid upon the Tongue without our tafting it fweet ;...
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Encyclopædia Britannica: Or, A Dictionary of Arts ..., Volume 13, Part 1

Colin Macfarquhar, George Gleig - Encyclopedias and dictionaries - 1797 - 450 pages
...that, in order to our pereeiving the imprfffion made by any objeft upon our fenfet, it muft either be of a certain degree of force, or of a certain degree of magnitude. For this icafon,. a ftar, -which appears only as a lucid point through a telefcope, fubtending not fo much...
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Encyclopædia Britannica: or, A dictionary of arts and sciences ..., Volume 15

Encyclopaedia Britannica - 1810 - 814 pages
...and he obíei ves, that in order to our perceiving any imprellion upon cur fenfes, it muit either be of a certain degree of force, or of a certain degree of magnitude. For this realbn, a ftar, which appears only as a lucid point through a tcletcope fubtending not fo much...
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Encyclopaedia Perthensis; Or Universal Dictionary of the Arts ..., Volume 16

Encyclopedias and dictionaries - 1816 - 778 pages
...order to our perceiving the imprefiion made . B bb by by any object Upon our fenfes, it muft either be of a certain degree of force, or of a certain degree of magnitude. For this reafon, a ftar, which appears only as a lucid point through a telefcopc, fubtending not fo much...
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Encyclopaedia Britannica; Or A Dictionary of Arts, Sciences, and ..., Volume 15

Encyclopedias and dictionaries - 1823 - 886 pages
...and he observes, that in order to our perceiving any impression upon our senses, it must either be of a certain degree of force, or of a certain degree of magnitude. For this reason, a star, which appears only as a lucid point through a telescope subtending not sa much...
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