Skip to main content

Features

Railway Safety and Railway Economics, The Invisible Man Behind the Gun and more

The Balboa Docks

How the Solid Masonry Columns for Supporting the Great Wharves at the Pacific Ocean Entrance to the Panama Canal were Rapidly and Economically Constructed, Carrying the Foundations Down to Bed Rock

"Notable Salvage Work Upon the Empress of Ireland, The Highest and Lowest Temperatures in the Atmosphere and more"

By Robert G. Skerrett

A Formula for Calculating the Tactical Value of Fighting Ships

By A. Given

War Experiences of an Air Scout-III*

A Battle in the Clouds
[Cover image of January 9, 1915, issue illustrates this article]

By Frederick C. Hild

Measuring Human Intelligence

A Progressive Series of Standardized Tests Used by the Public Health Service to Protect Our Racial Stock

By Howard A. Knox

Archimedes and his Lever, Dr. Hall, the Aluminium Pioneer

By C. O. Sandstrom

Temperature in Plants

By S. Leonard Bastin

New Railway Signal

Departments

  • Departments

    Recently Patented Inventions - January 9, 1915

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
January 09, 1915Cover Image: A Desperate Dive by a Pilot to Avoid Enemy Aircraft

See the World from a Different Perspective

Subscribe to Scientific American MIND