Ancient Battles in the Movies
Catapults . . . Battering Rams . . . "Tanks" . . . Armor . . . Swords . . . Shields . . . Historical Accuracy Assured By Research . . . Tricks Used
Volume 153, Issue 2
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Features
Diggers in the Field
Archeologists Dig Up Ancient Utensils Very Much Like Our Own, One of Them a Mystery
Ready-Made Houses
Houses from Catalogs, Pre-Fabricated Steel, Pre-Cast Concrete, Several Types, More than Mere Novelty, Basic Accomplishments
What are Positrons?
Discovery of a Positively Charged Counterpart to the Negative Electron, That Can Apparently be Created and Destroyed, Dirac's Theory, All Space Filled With an Infinite Number of Electrons That Can Never be Directly Observed
The Lady Mosquito and Her Pocket Jack-Knife Tool Kit
When a Snake Bites You
Serum is not Sufficient, Prolonged Mechanical Suction is the Basis of the Highly Successful San Antonio Treatment, Now Used by U. S. Army
The Latest in Police Radio
The Seven League Boots of Photography
Telephoto Lenses are Versatile, Annihilate Space, Larger Images, Better Portraits
Flood Control on Ol' Man River
Started 1928, Completion Next Year, Levees Raised, Fuse-Plug Spillways, Floodways Provided, 650,000,000 Cubic Yards of Earth Moved
Office Efficiency
Increased by Scientific Study, Better Light, Quiet, Comfort, How Studied
Sun Clocks
Beautiful Garden Ornaments, Sun Clocks, Not Sundials, Dependable to Within One Minute
The Blue Clouds of Mars
Progress in This Age of Science as Told to Scientific American, August 1935
As Told to Scientific American