Volume 164, Issue 2
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Features
Time to the Second
Modern Tempo of Living Requires Close Timing
Better Health From the Sea
Vitamin A from Shark Livers, Varied Products from Weeds, Form Growing Industries
Verification, Eyesight, and more
An Ice Bag on The Forehead Lowers Brain Temperature: Given to Blind Person Necessitates Adjustments; Beat As One, in a Manner of Speaking
Fighting Friction
Just How Friction Operates Between Metals Is Not So Simple as it Sometimes Seems
Photometer, March of Technology
Eliminates Human Element In Spectrographs Analysis; Research Necessary to Plan For More Stable Economy
Sun-Spot Distribution
What Had Seemed to be an Anomaly Proves to be an Optical Effect with Odd Cause
Robot Photographic Observer
Army Air Corps Develops Power-Driven Movie Camera for Test Flights
Inexpensive
Network of Seaplane Floats Dots Waterways
Cockpit Release, Test Tower
We Build More Ships
Our Merchant Fleet Adds About One Ship A Week—Efficient, Economical, Safest
Floating Power Plant, Test Bomb
Would See Service In Emergencies; Determines Power Of Explosives
Eye Science Moves Forward
Vision, Precious to All of Us, is Aided and Saved By Optical Industry's Developments
Extruded Metals, Bearing Checker, and more
Process Common Abroad, Little Known Here
What is 'FM'?
Frequency Modulation Broadcasting Offers Improved Sound Range, Freedom from Noise
Half Soles, Shockless Fuse, and more
Grand Prize Winners
Legal High-Lights
Patent, Trade Mark, and Related Legal Proceedings That May Have a Direct Effect on Your Business