The seven follies of science; to which is added a small budget of interesting paradoxes, illusions, marvels, and popular fallacies. A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. With numerous illustrations (1912)
Phin, John, 1830-1913 · New York, D. Van Nostrand company · leaf 47
xactly six times; it will thereforedivide the 360° into six equal parts of 60° each. Thisbeing the case, with the radius CB, and B for a center, 33 34 THE SEVEN FOLLIES OF SCIENCE describe a short arc crossing the arc ADEB in D, and joinCD. The angle DCB will be 60°, and as the angle ACBis 90°, the… … Fig. 4. . into three equal parts, or in other words, it is trisected.And with a slight modification of the method, the samemay be done with an angle of 45, and with some others.These however are only special cases, and the very essenceof a geometrical solution of any problem is that it shall…
Scientific recreations · Geometry
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