Popular Mechanics

Capa
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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Conteúdo

How science has aided national game
676
Baseball
Why you pay ten cents apiece for apples
680
Apples
From millstones to skyscrapers
687
Granite
Behind the big top of the modern circus
691
Circus
Rubber actors lend realism to movies
697
Motion pictures (Puppet films)
Steel master points out road to success
701
Steel industry
Water veil guards walls of skyscraper
710
Fire prevention
Giant turbine is installed at Niagara
712
Turbines, Hydroelectric plants, Niagara River (N.Y. and Ont.) (Power utilization), Niagara Falls (N.Y. and Ont.)
Armored cotton is developed to foil boll weevils
714
Boll weevils
Danger of wrecks to be lessened by automatic control
723
Automobiles (Automatic train control)
Fortune spent yearly to answer queries from hospitals all over world
757
HOSPITAL library and service bureau
Policing the air to protect radio fans
759
Radio laws and regulations
Friction: wheel and axle
777
Friction
Making a hydraulic ram
784
Hydraulic rams
Making a glare shield
789
Glare screens
Cutting and drilling glass
793
Glass
Sleeping in Ford sedan
796
Automobiles (Camping equipment)
Spring overhaul
797
Automobiles (Maintenance and repair)
Seesaw merry-go-round
803
Seesaws

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