New Forms of Instruments for Showing the Presence and Amount of Combustible Gas in the Air (open access)

New Forms of Instruments for Showing the Presence and Amount of Combustible Gas in the Air

Scientific paper issued by the Bureau of Standards over the detection of combustible gases in the air. The design and development of new detection equipment is discussed. This paper includes tables, photographs, and illustrations.
Date: June 23, 1919
Creator: Weaver, E. R. & Weibel, E. E.
System: The UNT Digital Library
Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires (open access)

Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires

Scientific paper issued by the Bureau of Standards over ultra-radio frequencies. As stated in the abstract, "this paper furnishes the theoretical background for the method of frequency standardization employing short standing waves on parallel wires" (p. 487). This paper includes tables, and illustrations.
Date: June 23, 1924
Creator: Hund, August
System: The UNT Digital Library