Skip to main content

Stories by M. A. Henry

The Miner's Dump-Heap Goes to Work

How Values Are Being Recovered from Ores That Were Once Discarded

November 1, 1921 — M. A. Henry

Home Building Simplified

What Inventors are doing by Way of Giving the Home Builder more House for Less Money

July 30, 1921 — M. A. Henry

From Brewing Beer to Raising Mushrooms

April 16, 1921 — M. A. Henry

The Why of Luminous Paints

April 2, 1921 — M. A. Henry

Varying the Airplane Propeller Pitch, Joseph Norman Lockyer, K. C. B. and more

August 28, 1920 — M. A. Henry

Keeping the River Tunnel Dry, Spontaneous Combustion Temperatures of Liquid Fuels and more

July 31, 1920 — M. A. Henry

Toys that do Great Work

The Indispensable Place Occupied by Models in the Engineering of Today

July 10, 1920 — M. A. Henry

When the Heart Tells its Story

How Electrical Engineers Have Developed a Practical Cardiac Recorder for the Medical Fraternity

June 19, 1920 — M. A. Henry

Checking Up Einstein

The Proposed Repetition of the Michelson-Morley Experiment in Search of Evidence of Ether Drift

June 12, 1920 — M. A. Henry

Ohio's Flood Insurance

How the Miami Valley Plans to Stop the Next Inundation Before it Starts

May 22, 1920 — M. A. Henry

Where the Eye Supplants the Ear

How Sound Waves Are Made Visible and Analyzed with Complete Precision

April 24, 1920 — M. A. Henry

Continue reading with a Scientific American subscription.

You may cancel at any time.