Weekly, from September 1942 to July 1945, Charles F. Kettering gave five-minute intermission talks about Science and Invention during the radio broadcasts of the General Motors Symphony of the Air.

Kettering invented the first automobile self-starter, and for 31 years directed a research laboratory for General Motors.

These radio talks are a fascinating legacy from the mind of a prolific inventor. The obvious anachronisms now add a historical perspective of the war-time period in which they were written.