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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Sommario

Jobs from research
161
Employment, Industrial research
Gasoline and coal made from farm crops
166
Ernst Berl, Agricultural chemistry, Coal, Fuel, Gasoline
Man against King Winter
168
Winter
Freezing history in miniature
174
Arthur WOODWARD, Historical models
Uncle Sam's school for sailors
177
Naval education

Talking machine comes back
188
Phonograph, Radio receivers, Sound (Recording and reproducing)
Fighting death in the street
194
Traffic accidents, City traffic, Los Angeles (Calif.)
War birds without wings
200
Autogiros, Military, Helicopters (Military use)
Teaching young America to shoot safely
206
Shooting
Paul Bunyan's pond
210
Columbia Lake
Sea-going soldiers
216
United States Marine Corps
Glider trains land invading troops silently
221
Gliders (Aviation) (Military use), World War, 1939-1945 (Aerial operations)
How big guns shoot across English channel
223
Guns (Ordnance)
Radio makes it sound right
226
Radio broadcasting (Sound effects)
War the destroyer
234
World War, 1939-1945 (Destruction and pillage)
Big ship college of the air
242
American Airlines, Inc, Aviation (Study and teaching)
Gem factory on the half shell
248
Pearls
Back yard swimming pools built at low cost
251
Swimming pools
Electrons in overalls
252
Electrons, Vacuum tubes

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