Title

Scientists Test Auto Ignition

Caption

Washington, D.C.: August 22, 1931
Two engineers at the U.S. Bureau of Standards use a cathode ray oscillograph to test charteristics and effiveness of various types of sparks used for automobile engine ignition.

Date

Aug 22, 1931

Credit line

Photo12/Underwood Archives/UIG

Reference

UMG20A12_406

Model release

No

Property release

NA

License type

Rights managed

Available size

52,3Mb (8,5Mb) / 16,0in x 12,7in / 4800 x 3812 (300dpi)

Keywords

working 1920s Twenties 1930s Thirties 1931 2 People 2 people Auto Ignition Automobile Engine Ignition B & W B&W Cathode-Ray Oscilloscope Igniting Instrument Measurement Standards Laboratory National Bureau Of Standards National Institute Of Standards And Technology Observing Oscilloscope Sciences Scientist Sparks USA United States Washington State black & white black and white concentration engineer examining experiment historical horizontal indoors job laboratory men occupation occupations people photography research science sitting testing two people vintage working