Popular Mechanics

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Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.
 

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Mystery of the jewel-covered warriors
530
Monte Alban site (Mexico)
Stop-and-go lights on dash to control autos
535
Traffic signs and signals
On the Eastern front
545
Chinese-Japanese War, 1931-1932
Catch 'em alive-o'!
562
Wildlife (Capture)
Tricks of packing
570
Pack transportation
Autos without axles promise easier riding
623
Automobiles (Riding qualities)
Cotton magic!
627
Cotton
Secrets of the master spies
636
Cryptography, World War, 1914-1918 (Secret service)
Power amplifier employs hand-made parts
642
Amplifiers, Radio receivers (Energy usage)
Homemade resistance bridge for radio amateurs
645
Radio receivers, WHEATSTONE bridges

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