Spark Plug for U. S. Air Forces Is Kin to Precious Stones

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To endure the punishing heat and high compression of aviation engines and withstand the effects of lead in the gasoline, a new spark plug has been developed for the U. S. Air Forces. Its insulator is chemically akin to sapphires, rubies and oriental amethysts, and is harder than any substance save the diamond. The entire output of the new plug is going to the U. S. government for airplanes and tanks and to commercial airlines for use in transport planes. The basic material of the insulator is aluminum oxide, which is mixed with a binder, molded to shape and then baked in a high-heat kiln.

Title (Dublin Core): Spark Plug for U. S. Air Forces Is Kin to Precious Stones
Subject (Dublin Core): en Technology; en Airplanes and Zeppelins
Article Title and/or Image Caption (Dublin Core): Spark Plug for U. S. Air Forces Is Kin to Precious Stones
Language (Dublin Core): Eng
Temporal Coverage (Dublin Core): World War II
Date Issued (Dublin Core): 1942-02
Is Part Of (Dublin Core): Popular Mechanics, vol. 77, n. 2, 1942
pages (Bibliographic Ontology): 90
Rights (Dublin Core): Public domain
Source (Dublin Core): Google books
References (Dublin Core): United States Air Force; United States of America
Archived by (Dublin Core): Enrico Saonara

Item sets: Wars of Wonders; full text

Media: Spark Plug for U. S. Air Forces Is Kin to Precious Stones