The SciencesSeptember 1, 1931
The Perspective of Modern Physics
Stories by Paul R. Heyl
The SciencesMay 1, 1931
How Big is a Quantum?
The SciencesDecember 1, 1930
What is a Quantum?
The SciencesJune 1, 1930
Is There an Ether?
Aid for the Layman Who Attempts to Keep Abreast of the Changing Concepts of the Modern Physicist
The SciencesNovember 1, 1929
The Speed Record of the Universe
Light Holds the Universal Speed Record. There Is Good Evidence That a Higher Velocity Is Impossible
The SciencesJune 1, 1929
The Strangest Thing in Physics
Why Water at Its Boiling Point Weighs a Little More Than at a Freezing Temperature. Old Concepts, and Even Laws, Are Broken Down by The New Physics
The SciencesNovember 1, 1928
Wave Atoms
A Scientist Explains Further the Inwardness of the New Schrodinger Atom Concept
The SciencesJuly 1, 1928
What is an Atom?
The Newest Concept of the Atom Is Known as the "Schrodinger" Atom. What Is Its Fundamental Nature?
The SciencesMarch 1, 1928
Weighing the Earth
The Earth's Mass Is About 6,000,000,000,000,000,000,000 Tons. How Is This Amount Actually Determined?
The SciencesNovember 1, 1927
Muscles Built the Pyramids
Human Muscles are More Efficient than the Best Steam Engines. An Electrical Theory of Muscular Action
The SciencesJanuary 1, 1927
Children of the Sun
For Heat, Light, Energy, Food, Materials and Our Very Bodies We are Indebted to the Nearest Star--the Sun
The SciencesOctober 1, 1926
The Wonder of the Commonplace
".. Tongues in Trees, Books in the Running Brooks, Sermons in Stones.." As You Like It