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The Channel Tunnel and its Early History—I

Plans for Direct Railway Connection Between England and France

By John Clarke Hawkshaw

Gatun Hydroelectric Development for the Panama Canal

How the Surplus Water of Gatun Lake will Furnish Light and Power for the Panama Canal and Railway

The “Aquitania” and the “Vaterland”

Fluid Motions

Some Problems Awaiting Solution

By Lord Rayleigh

The Internal Combustion Motor in the Field of Aviation

Aviation Has Evolved Three General Types of Gasoline Motor

By Howard Huntington

Some Conditions Inducing Excessive Respiration

The Mechanical Efficiency of Muscle

The Schilowsky Gyroscope

Its Adaptation for Stabilizing Ships and Aeroplanes

By J. Harris Stone

Some Further Experiments with Liquid Drops and Globules

Life-like Properties of Inert Matter

By Charles R. Darling

The Price of Labor Expressed in Terms of Food Fuel


  • Napier and the Invention of Logarithms

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July 11, 1914

Think Outside the Gift Box