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" When a man in the dark presses either corner of his eye with his finger, and turns his eye away from his finger, he will see a circle of colours, like those in the feather of a peacock's tail. If the eye and the finger remain quiet, these colours vanish... "
The Gentleman's Magazine - Strona 1098
1786
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Opticks:: Or, A Treatise of the Reflections, Refractions, Inflections and ...

Sir Isaac Newton - 1730 - Liczba stron: 382
...of the Chameleon,) do not meet, if I am rightly informed. £>u. 1 6. When a Man in the dark prefles either corner of his Eye with his Finger, and turns his Eye away from his Finger, he will ftc a Circle of Colours like thofe in the Feather of a Peacock's Tail. If the Eye and the Finger remain...
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The Philosophical Works of the Honourable Robert Boyle Esq: Abridged ..., Tom 2

Robert Boyle - 1725
...To this purpofe Sir Ifaac Newton fpeaks thus : " When a man in the dark, " fays he, greffes cither corner of his eye " with his finger, and turns his eye away 41 from his finger, he wiJl fee я circle of " colours like thofe in the feather of a '* peacock's...
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Opticks: Or, A Treatise of the Reflections, Refractions, Inflections and ...

Isaac Newton - 1730 - Liczba stron: 382
...and of the Chameleon,) do not meet, if I am rightly inform'd. ^u. 1 6. When a Man in the dark prefies either corner of his Eye with his Finger, and turns...from his Finger, he will fee a Circle of Colours like thofe in the Feather of a Peacock's Tail. If the Eye and the Finger remain quiet thefe Colours variifh...
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Philosophical Conversations: Or, A New System of Physics, by Way of ..., Tom 2

Regnault (Père, Noël) - 1731
...obferve a Sort of Stars in the Dark, The * Mem. de 1'Acad. 1700. p. 289. f When a Man in the dark prefles either Corner of his Eye with his Finger, and turns...from his Finger, he will fee a Circle of Colours like thofe in the Feather of a Peacock's Tail. If the Eye and the Finger remain quiet, thefe Colours vanifh...
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Zoonomia; Or, The Laws of Organic Life, Tom 1

Erasmus Darwin - 1800
...are at the fame time perpetually changing as long as they exiit, 3. When any one in the dark preffes either corner of his eye with, his finger, and turns...from his finger, he will fee a circle of colours like thofe in a peacock's tail : aud a fucUien Haiti of light is excited in the eye by a ftroke on it. (Newton's...
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Observations on man, his frame, his duty, and his expectations, Tom 1

David Hartley, Hermann Andrew Pistorius - 1801
...the appearance mentioned by Sir Ifaac Newton, Opt. §>u. 16. viz. " When ." a man in the dark prefles either corner of his " eye with his finger, and turns..." his finger, he will fee a circle of colours like thofe " in the feather of a peacock's tail. And this " appearance continues about a fecond of time,...
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Zoonomia; Or, The Laws of Organic Life ...

Erasmus Darwin - 1801
...are at the fame time perpetually changing as long as they exift. 3. When any one in the dark prefles either corner of his eye with his finger, and turns...from his finger, he will fee a circle of colours like thofe in a peacock's tail : and a fudden flam of light is excited in the eye by a ftroke on it. (Newton's...
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Zoonomia, Or, The Laws of Organic Life: In Three Parts, Tom 1

Erasmus Darwin - 1803
...the fame time perpetually changing as long as they exift. 3. When any one in the dark prefles cither corner of his eye with his finger, and turns his eye...his finger, he will fee. a circle of colours like thofe in a peacock's tail : and a fudden SEcT. XL. i.4- OCULAR SPECTRA. 445 fudden. flafh of light...
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Zoonomia, Tom 1

Erasmus Darwin - 1818
...perpetually changing as long as they exist. 3. When any one in the dark presses either corner of biseye with his finger, and turns his eye away from his finger, he will see a circle of colours like those in a peacock's tail: and a sudden flash of light is excited in the...
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An Elementary Treatise on Optics

Henry Coddington - 1825 - Liczba stron: 196
...the nerves into the brain, cause the sense of seeing." And again, " When a man in the dark presses either corner of his eye with his finger, and turns his eye away from his finger, he will see a circle of colours like those in a peacock's tail. Do not these colours arise from such motions...
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