Sleeping with the Eyes Open
Scientific Research Demonstrates That a Motorist or Anyone May Actually Be Asleep, Even if the Eyes Are Seen to Be Open
Volume 140, Issue 6
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Features
Modern One-Man Orchestras
Organs for the Church, Theater, and Home Require Skilled Workmanship if They Are to Render Good Service
Architects as Room Designers
The Strangest Thing in Physics
Why Water at Its Boiling Point Weighs a Little More Than at a Freezing Temperature. Old Concepts, and Even Laws, Are Broken Down by The New Physics
"Firsts" in Aviation
Work Progresses on Mightiest Bridge
Hudson River Span Is Scheduled for Completion in 1932. The Towers are Rising Rapidly
The Highest Known Velocity
Astrophysicists Have Just Determined that One Universe of Stars Is Moving Through Space at Five Thousand Times the Speed of a Rifle Bullet
From the Scrap-book of Science, June 1929
Prospecting with Artificial Earthquakes
How Hidden Mineral-Bearing Formations are Sought by the Seismic Method
The Month in Medical Science, June 1929
A Review and Commentary on Progress in the Medical and Surgical Fields
The Search for the First American
Most Anthropologists Accept the Theory that Man Reached the New World by Way of Alaska. New and Immense Excavations for Gold, if Given Attention, Might Also Reveal Evidences of This Early Emigration
Education Adopts the Motion Picture
Films Prepared to Supplement the School Curriculum Prove Their Worth in Education's Greatest Experiment
Pointers from a Pen Maker
A Fountain Pen Combined With a Mechanical Pencil is the Latest Successful Product of a Veteran Inventor
The Mystery, Desolation and Grandeur of Death Valley
Egyptian Vandalism 3400 Years Ago
How Posthumous Fame was Denied to a Female Usurper of the Throne of Egypt
Aerodynamic Wind Mills
Airplane Science is Applied to Wind Mills for Greater Power and Efficiency
Television Advances
With Powerful Transmitting Stations Furnishing Radio Vision Broadcasts on Schedule, Receivers Are Being Developed and Tested by Thousands of "Lookers in"
Protecting Paintings for Posterity
Various Branches of Science Are Combining to Foil the Arts of the Faker of Paintings
Roman Engineering Triumphs
Vast Systems of Aqueducts Built by Roman Emperors Have Commanded Much Admiration From Ancients and Moderns Alike
Our Light-Airplane Design Contest
Wasteful Cotton Baling Methods
Southern Farmers Retain Old Methods Despite the Fact That Much Waste Results. A More Efficient Method Exists and Is Slowly Coming Into Use