Features
Looking Ahead With the Editor, January 1930
Needed: A Bigger Merchant Marine
Hearing Without Ears
Bone-Conduction Equipment to Aid Partially Deaf Persons
Developments Born of the Speedway
Perfection of Racing Cars and the Terrific Tests They Undergo Teach Many Lessons to the Manufacturer
When Reindeer Roamed the Pyrenees--II
How the Anthropologist Explores the Buried Evidence of the Ancient Past and Reconstructs an Outline of Prehistory
Hunting Pocket Planets
How the Astronomical Specialist Applies Scientific Management to the Systematic Search for New Asteroids or Minor Planets
An American Front-End-Drive Car
Many Advantages Seen for the Front-End Drive Which Has Recently Been Applied to an American Pleasure Car
The Truth About Aviation Stocks
Basically Sound, the Aircraft Industry Has Suffered Severely From Growing Pains, But Is Now Becoming Stable
Giant Trailers Protect Pavements
"Fingerprinting" Autos
Bridging the Grand Canyon
Intrepid Engineers Anchor Cobweb of Steel to Gorge's Precipitous Walls
The Airplane Diesel in 1940
The Many Advantages of This Simple Power Plant Point Toward a Great Increase in Its Use
Sea-Safety Contest Winners
Our Competition Has Focused Attention on Devices That Make for Safe Navigation, and Are Reliable in Emergencies
The Rarest Metal Yet Obtained
A Scientific Account of Research on Protactinium, Element 91, Which Is as Radioactive as Radium
Light Airplane Design Contest Winners
First Prize Awarded to an Army Flyer, Second to a Commercial Designer and Third to a Midshipman
How Well Does the Car Stand Up?
Grueling Tests on Proving Ground Show Capabilities and Characteristics of Cars
Mass Production in Agriculture
Large-Scale Farming Operations May Be Revolutionized By Means of Tractors Powered With Diesel Engines
Fuzed Quartz for Ultra-violet Rays
The New Fused Quartz Solarium
Your 1930 Car
A Survey, in Brief, of Developments, Improvements, and Changes in Design of Some of the Better Known Cars
Four Cables: 106,000 Miles of Wire
As Spinning of Cables Begins, the Hudson River Bridge From New York City to New Jersey Becomes a Giant Loom
Expediting Truck Deliveries
Conveyor Belt Unit on Truck Delivers Load With Ease and Speed
Defeating the Gasoline Knock
Gasoline to Which Tetraethyl Lead Is to Be Added, Must Be Carefully Tested to Insure a Definite Quality
A Memory Trick
At the Cost of An Hour's Intensive Study You May Learn a Mnemonic System Which 'Will Mystify and Entertain Your Friends. But Memory Cures Are Unscientific
With the Historians of Science
The Amateur Astronomer, January 1930
Departments
- Departments
Back of Frontispiece, January 1930
Frontispiece, January 1930
Research Made Your Motor Car
Our Point of View, January 1930
A "Ferris Wheel" Car Parking Machine, Giant Hog Was Big as Auto and more
A New Boundary Light, The Problem of Air-sickness and more
New Method of Curing Concrete Supersedes Usual Straw Covering, Humidity Effects Motor Performance and more
The Composition of Cigaret and Cigaret Smoke, The Lens of the Eye, and more
Current Bulletin Briefs, January 1930
The Heavens in January 1930
Chemical Jingles, We Pay For Ashes and more
Beryllium for Aircraft
"Eskimo Pie" Patent Held Invalid, Motion to Dismiss With Prejudice Denied and more