
The SciencesOctober 1, 1929
The "Lively" Ball
Tests Conducted by Scientific American to Determine Whether the Present Baseball Is Livelier Than the Old, and if So, Why

The "Lively" Ball
Tests Conducted by Scientific American to Determine Whether the Present Baseball Is Livelier Than the Old, and if So, Why

Practical Television Demonstrated
One-way Transmission of Images of Moving Objects Marks Another Step Forward in the Telephone Art

Clean Comfort in the Home
How the Coal-burning Furnace May Be Converted to An Oil-burning Type, and the Results of the Change

Another Victory for Oil Equipment
A Diesel Engine Installation With Greatest Flexibility and Ease of Operation, in a Most Demanding Service