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- A mind for math: A part of the brain associated with making memories may also predict success in learning math
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- Flagging loose bolts: “Smart alert washer” automatically flags when a nut is coming loose, warning of potential danger
Fifty Machines That Changed the Course of History
Web edition: February 21, 2013
Print edition: March 9, 2013; Vol.183 #5 (p. 30)
Review key inventions of the 19th and 20th centuries, from bicycles to the Underwood typewriter.
Firefly, 2012, 224 p., $29.95
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