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" Thus fullers and dyers find black cloths of equal thickness with white ones, and hung out equally wet, dry in the sun much sooner than the white, being more readily heated by the sun's rays. It is the same before a fire; the heat of which sooner penetrates... "
Annual Register - Page 103
1800
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Encyclopedia of Natural and Artificial Wonders and Curiosities ..., Volume 11

John Platts - Curiosities and wonders - 1876 - 952 pages
...it; but if you bring the focus to a black spot, or upon letters written or printed, the paper \\ill immediately be on fire under the letters. "Thus fullers and dyers find thatblack cloths, ofequal thickness with white ones, and hung out equally wet, dry in the sun much...
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The Ingenious Dr. Franklin: Selected Scientific Letters of Benjamin Franklin

Benjamin Franklin - Biography & Autobiography - 1974 - 244 pages
...burning glass. If it is white, you will not easily burn it; but if you bring the focus to a black spot, or upon letters, written or printed, the paper will...Thus fullers and dyers find black cloths, of equal thickness with white ones, and hung out equally wet, dry in the sun much sooner than the white, being...
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Annual Register, Volume 12

Edmund Burke - History - 1770
...a very great difference in their warmth. The black will be quitę hot to the touch, the white Hill cool. Another. Try to fire paper with a burning glafs....dyers find black cloths, of equal thicknefs with white enes, and hung out equally wet, dry in the fun much fooner than the white, being more readily heated...
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Endless amusement; a collection of entertaining experiments in various ...

Endless amusement - 1820
...burning-glass : if it be white, you will not easily burn it ; but if you bring the focus to a black spot, or upon letters, written or printed, the paper will...Thus, fullers and dyers find black cloths, of equal thickness with white ones, and hung out equally wet, dryin the sun much sooner than the white, being...
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Journal of the Franklin Institute, Volume 161, Issues 961-966

Franklin Institute (Philadelphia, Pa.) - Electronic journals - 1906
...burning-glass. If it is white, you will not easily burn it; but if you bring the focus to a black spot, or •upon letters, written or printed, the paper..."Thus fullers and dyers find black cloths, of equal thickness with white ones, and hung out equally wet, dry in the sun much sooner than the white, being...
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