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 167
rmation avoid those in which thestripes are vertical. But the greatest discrepancy is seen in Figs. 28 and 29,the middle line in Fig. 29 appearing to be much longerthan in Fig. 28. Careful measurement will show that theyare both of precisely the same length, the apparent differ- 154 THE SEVEN… … Fig. ig. Fig. 29. if asked which of the posts was the highest, most personswould name C, but measurement will show that A is thehighest and that C is the shortest. A still more striking effect is produced in two parallellines by crossing them with a series of oblique lines as seen
Scientific recreations · Geometry
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