Features
Looking Ahead With the Editor, May 1930
Is There an Ether?
What is a Good Flying School?
The Department of Commerce Has Worked Out Regulations for Rating Aviation Schools and Has Approved Many
Revising Our Air and Our Water
A Piece of Research in Pure Science Provides an Unexpected By-product, Giving Atmospheric Oxygen an Isotope
When You Buy Your Plane
What Details of Construction, Features of Operation, and Factors of Safety to Consider
Florida's Lusty Infant Industry
Tree Producing Invaluable Tung Oil Now Naturalized American
Voices Across the Sea
The Successful Exchange of International Programs Places Another Milestone on the Path of Radio Progress
An Air-transport Operator Speaks
"It Is the Operator's Obligation to Employ Every Known Device to Make Air Transport Safe and Speedy"
Blasting Coal Without Explosives
Inert--Flameless and Non-inflammable--Carbon Dioxide in New Shell Blasts Coal With a "Slow" Heave
The Cultured Naval Officer
Few People Realize the Broadness and Completeness, Technically and Culturally, of Our Naval Education System
Canada's Peerless Playground
The Successful Airplane Diesel
First Detailed Description to be Published of the Design of This Revolutionary Engine
Advice to Students of Aviation
Stunting for Safety
Training in Plane Acrobatics Instills Confidence and May Help the Pilot Out of Tight Places
Midget Marine Motors
The Rise of the Outboards Has Been Rapid, But Even Greater Developments May Be in Store
Michelson
An Appreciation of America's Foremost Optical Physicist
The Aerial Ferry Arrives
Operating at Frequent Intervals, Amphibions Carry Passengers on Regular Schedule
Our Air Analyzed
How Science Fights the Smoke and Dust Evils of Our Cities
A Diesel Drives an Automobile
Stock Marine Diesel in 6000-pound Car Chassis Makes 2780 Miles on $7.72 Worth of Fuel Oil
Edison's Rubber
What Mr. Edison Is Doing in His Attempt to Develop an American Wartime, Emergency Rubber Industry in the South
"How do they Know?"
A Brief Glimpse of Some of the "Inside" Considerations Which Guide the Expert in Judging the Antiquity of Flint Implements
The Amateur Astronomer, May 1930
Departments
- Departments
Walter Franklin Prince
Admiral Byrd's Antarctic Expedition--Its Accomplishments
Our Point of View, May 1930
A Mail Order Airplane, Air Commerce in 1930 and more
Hudson River Bridge Approach, German Locomotive has 1700-Pound Pressure and more
"Parrot Disease", Cancer and more
Spray Drying of Latex Revolutionizes Rubber Manufacture, Roast Beef in a Salt Shaker and more
Current Bulletin Briefs, May 1930
The Heavens in May 1930
Chemicals do not Fool Chickens
American Corporations in Mexico, Patents and Taxes and more
