Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 77
he two rods touch each other. In order to light the lamp, they are pulled apart; and if you look at the flame through a smoked glass, you will see that the rods do not quite touch. There is a small space between their points, and this space is filled with fire. Look at the other parts of the rods,… … Brilliant sparks leap from the ends of the flyingwire, and crackling blue flames seem to dance onthe copper brushes that touch the armature, asit whirls swiftly around. On page 567 is a pictureof one of these strange machines. You can notdistinguish the parts of the armature as it spinsaround and…
Children's literature
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