Features
Animal Methuselahs
Which Animal Live the Longest
Too Strong, Schizophrenia
Bones Can Be Broken By One's Own Exertion
Heroes in Glass Houses
High-Speed Planes and Modern Armament Provide Intricate Problems for Aerial Gunners
Speed-Up, Expansion, and more
What it Means to Aircraft for Defense
The Inside Story of Rayon
When Wood Pulp Is Converted to Rayon, Just What Occurs and Why?
Better Glass, Frequency Meter, and more
Makes Stronger, Smaller Bottles
The Brightest Known Star
Recent Search Reveals a Star Shining at Least 45.000 Times Brighter than Our Sun
Water for our Greatest City
Longest Large Tunnel in World Is Deep Aqueduct to Bring More Water to City of New York
Pancake Locomotive, Ground Wires
Flat Design For Coal Mines
Psusennes' Tomb
Not Even the War Sufficed to Prevent the Archeologists from Excavating in Egypt
What Makes Fantasia Click
Multiple Sound Tracks and Loud-Speakers Give Auditory Perspective to Sound Movie Screen
Fireless Steam Locomotives
The Successful Revival of an Idea That Was Considered a Failure Forty Years Ago
Photo-Finishes
New Lighting Equipment Takes Last Element Of Chance from Horse Racing--Except the Horse
Humidifiers, Stack Surgery, and more
Chemical Assists Home Humidification
Departments
50 Years Ago, January 1941
- From the Editor
Our Point of View, January 1941
- Recommended
Our Book Corner, January 1941
- Departments
Personalities in Science, January 1941
Browsing with the Editor, January 1941
Industrial Trends, January 1941
Camera Angles, January 1941
Your Firearms and Fishing Tackle, January 1941
Telescoptics, January 1941
Legal High-Lights, January 1941
Current Bulletin Briefs, January 1941