Irving, [Christopher], d. 1856. [from old catalog], Ortmann, Anselm. [from old catalog] · Baltimore, Md., New York, J. Murphy company · leaf 31
is at that part of its orbit which is farthest awayfrom the sun. Q. 5. How much light and heat does Mercuryreceive from the sun? A. The heat and light of the sun is 6.7 times moreintense at Mercury than at the distance of the earth. Q. 6. How does the intensity of light and heatvary? A. The… … Fig. 5. Light and Radiant Heat Vary Inversely as theSquare of the Distance. MERCURY. 19 Q. 7. How may this be shown for Mercury? A. If we call the distance of the earth from thesun one, then the distance of Mercury from the sunis expressed by Iffi]fSfS- = 0.387. Therefore, lightat Mercury: light at…
Astronomy
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