TOYS, TRICKS & TEASERS
Fooling Around with Pulleys
MAKE readers hope that the things they make will work as intended. That doesn’t always happen. Meet the fool’s tackle.
Rope and pulley systems, such as the block and tackle, have been useful since earliest times. They were among the “simple machines” described by Archimedes, and are among the first mechanical systems studied in introductory physics courses.
High school physics students in my day knew the block and tackle system seen in Figure A, and knew that its ideal mechanical ...
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