Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 538
stronomer.—Professor Eric Doolittle,University of Pennsylvania. I9I3-] NATURE AND SCIENCE FOR YOUNG FOLKS 371 WHY DROPS OF LIQUID ARE SPHERICAL Little Compton, R. I.Dear St. Nicholas: Will you please tell me why almostany liquid, when it drops, takes the form of a sphere?Your interested reader,… … DROPPING ALCOHOL BETWEEN TWO STICKS TO WEAKENTHE SURFACE FILM OF THE WATER. contracting. If you will dip a camels-hair brushinto water and then withdraw it, you will see thatthe slender bristles are all drawn down together toa point. This is due to the fact that the waterclinging to the brush is…
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