Flame propogation in gas engines photographed. Washington, D.C., Aug. 26. A study of the mechanism of the flame propogation in the cylinder of a internal combustion engine is being made at the U.S. Bureau of Standards for the National Advisory Committee for Aeronautics. A secial bomb made of steel

Bureau of Standards speeds up photomicrography with new apparatus. Washington, D.C., Aug. 18. By means of this new apparatus just designed by the metallurgical divisions of the National Bureau of Standards, it is now possible to make 700 micrographs per working day of the structural effect of corros

Rating gasolines at the Bureau of Standards. Washington, D.C., April 17. F.R. Carter of the U.S. Bureau of Standards is shown adjusting the mixture of gasoline to find out the rating in octane numbers of gasolines. The three carbureter shown in the foreground are each filled with a gasoline tow of w

Testing airplanes lenses used in map making. Washington, D.C., May 6. Dr. F.E. Washer of the U.S. Bureau of Standards testing the lens for the airplane cameras that are used by the Army and Navy. There are lights in the rear of the columnmeters and exposures are made on the photographic plate in fro

Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square pr

Bureau of Standards designs new device for studying water flow through plumbing fixtures. Washington, D.C., March 13. A new type of rate-of-flow meter for studying the rate of variation of flow of water through plumbing fixtures and for use in investigation presenting similar problems has just been

Device for testing testers. Washington, D.C., May 25. Herbert L. Whittemore, Chief Justice of the Engineering Mechanics Sections, U.S. Bureau of Standards, has been awarded the Edward Longstreth medal for his work in developing this device for testing the machines which in turn test construction mat

Government discovers method to preserve. (3) Test for fading. D. Levinsky of the Bureau of Standards is pictured exposing a developed film to light from a carbon arc to find whether the photographic image fades. The carbon-arc light simulates daylight closely and therefore is used for many mate

Machine performs half a day's manual labor in 5 minutes. Washington, D.C., Dec. 22. H.J. Keegan of the U.S. Bureau of Standards, using the spectrophotometer to determine the different colors in a piece of cloth. It formerly took a man a half a day to make this spectrum analysis but now the machine d