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Bend the Wall M-r2d
Push on a concrete wall and the wall's deflection is detected by the deflection of a laser beam Fishbane Chapter:   4.3 HRW 9th:   5.07 Reese Chapter:   5.6 RHK 5th:   3.6 SJ 3rd Chapter:   4.6 PIRA DCS classification:   1R20.201

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Physics Lecture Demonstrations at the Department of Physics and Astronomy
The Johns Hopkins University