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The Multiple Eyes of Insects, December 1926

Insects Have Many Eye-lenses. Do They See a Separate Image with Each Lens, or a Single Image as Does the Human Being? Recent Experiments Show that Certain Established Beliefs About Insect Vision Are Wrong

By H. Eltringham

The Month in Medical Science

A Review and Commentary on Progress in the Medical and Surgical Field

By Morris Fishbein

Eclipsing Variables

Stars Which Revolve in Pairs, Somewhat Like Dumbbells, Alternately Eclipse One Another. Recent Studies of Such a Pair Strikingly Confirm the Previous Theories of Astronomers Concerning the Several Characteristics of the Stars

By Henry Norris Russell

Marvelous Crystal Structures from Cloudland

The Largest Sundial in the World

Luminous Bacteria, the Smallest Lamps in the World

The Characteristics and Efficiency 6f a Lighting Plant of Twenty Quadrillionths of a Candle Power

By E. Newton Harvey

Will You Travel Safely in the United States?

New 6,000,000 Cubic-foot Airships for Our Navy

These Ships, Specially Designed for Helium Inflation, Will Have the Motors Mounted Internally, Thereby Reducing Head-resistance

By C. P. Burgess

A New Tool for the Research Scientist

Many Interesting Experiments Have Been Performed With the Improved Cathode-ray Tube. They May Lead to Discoveries Which May Be Even More Startling Than Those Made With X Rays

The Scientific American Sport-plane Trophy Race

Extraordinary Speed Was Attained at the Philadelphia National Air Races

By Alexander Klemin

Edison Glimpsed at Radio in 1875

Scintillating Sparks Led to Discovery of Etheric Force

By Orrin E. Dunlap Jr.

How Science Can Improve Your Golf

A Highly Interesting Article on the Reasons for the Vagaries of the Flight of Golf Balls that Was Prompted by a Former Article by Professor Sheldon

By P. A. Vaile

The Development of Childrens' Toys

American-made Toys Have Ushered In a New Era of Instructive Recreation

By Elizabeth Banks

Tools and Household Implements of the Ancient Egyptians, Preserved by the Dry Climate, Now Show Us How They Lived

How the Nations Will Pay Us their War Debts

Peace-time Medals for Heroism and Service

A Flock of Unique Hybrids

Nature Plays a Curious Prank in Mating a Domestic Sheep and a Wild Ram

By Ethel W. Musgrave

A Violin Played by Mechanical Hands

How 50,000,000 Rabbits Furnish Milady's Furs

The Chimes of Catalina Island

How Washington's Garbage Pays Dividends

Efficient Disposal Plant Reclaims Valuable Oils and Greases

By Nell Ray Clarke

From the Scrap-book of Science--Camera Shots of Scientific Happenings

Applied Science for the Amateur

A department devoted to the presentation of useful ideas wherein will be found material of practical value for those who are mechanically inclined

By A. P. Peck

In the Editor's Note, December 1926

Departments

  • Departments

    Our Point of View, December 1926

  • Novel Devices for the Shop and the Home, December 1926

  • The Scientific American Digest, December 1926

  • The Heavens in December 1926

  • Radio Notes, December 1926

  • Learning to use our Wings, December 1926

  • Commercial Property News, December 1926

  • Patents Recently Issued, December 1926

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December 1926

Reanimate Your Brain

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