The Hudson River Vehicular Tunnel
A Big Problem of Ventilation, Requiring Nearly Four Million Cubic Feet 0 Fresh Air Per Minute
Volume 137, Issue 3
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Features
The Invention of Human Speech
Articulation and Phonation Have Been Combined to Form a Ready Means of Thought Transference Fellow of the Physical Society of London. Fellow of the Institute of Physics (England)
Flyer Equipped for High-Altitude Work
Odd Stars
The Search for Exceptional Stars--Some Unusually Bright, Some Exceptionally Faint, Others Very Rapid--Forms an Intriguing Specialty for the Modern Astrophysicist
Specimens from the Telepathic Mine
There Is a Mine of Interesting Evidence Tending To Establish the Genuineness Of Thought Transference
The June 29th Solar Eclipse in England
A Frenchman's Motor Caravan, a Home on Wheels
Power Plant to Generate 1,000,000 Kilowatts
Ice that Melts to a Gas
As A Refrigerant, Solid Carbon Dioxide Offers Many Advantages To Various Industries
Building an Airport With Dredges
Sleepy Sickness
Epidemic Encephalitis, or Sleepy Sickness, is Apparently a New Disease Whose Unknown Cause is Being Sought by Science
Why Fly Without Radio?
When Lost at Sea, a Crippled Plane Without Wireless Has as Much Chance as a Mouse Among Cats
Sloop Versus Schooner
Dawn-Man or Ape?
Was Our Ancestor a Dawn-Man, or Did We Descend Directly From an Anthropoid Ape of an Ancient Geologic Epoch?
Extracting Snake Venom for Use in Serums
Sounds Recorded on "Movie" Film
New Process Opens Wide Field for the Production of Satisfactory Talking Motion Pictures
World's Largest Artificial Lake
The New Martin Dam in Alabama Provides 530 Billion Gallons for Hydro-Electric Power Development
The City of the Future
Proper Design of Highways, Buildings and Sidewalks Will Reduce City Congestion to a Comfortable Level
Successful Inventors---IX
The Ultimate Use of an Invented Article is What Counts, Say Two Partner-Inventors
The Most Fascinating Spot on Earth--III
The Composite Iron Mass Beneath Meteor Crater Is Believed to Be About 500 Feet in Diameter
What Determines Rowing Speed?
Tests in Specially Constructed Tanks Have Revealed Some Interesting Data Relative to Work Performed by Oarsmen
From the Scrap-book of Science-- Camera Shots of Scientific Events, September 1927
Applied Science for the Amateur, September 1927
A Department Devoted To the Presentation of Useful Ideas Material of Value To All Will Be Found Here