Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 526
ecause the wind strikesagainst these blades as they would against thearms of a windmill, and, at the same time, thearms themselves are spinning around in circles(see Figure 5). In this particular case, there is ahole made through the figure from foot to crown.He turns around on a rod run through…
Children's literature
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