Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 431
rm voltage beingused as a measure of the tension or pressure ofthe electricity). Lightning also occurs in the form of sheet-lightning, which all of us have seen illuminat-ing for a moment a large area of the sky witha soft glow, and more rarely as ball-lightning.In the latter form, it is… … CHARLES P. STEINMETZ EXAMINING THE BRANCHWHICH WAS SPLIT BY ONE OF HIS MADE-TO-ORDERTHUNDERBOLTS that it has been found possible to imitate theeffects of lightning in the laboratory. Thedistinguished electrical engineer, Charles P. 992 NATURE AND SCIENCE FOR YOUNG FOLK 993 Steinmetz, of…
Children's literature
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