Light Physics and Headlights 'White Magic' 1940 General Motors


Public domain film from the Library of Congress Prelinger Archive, 
slightly cropped to remove 
uneven edges, with the aspect ratio corrected, and mild video noise reduction 
The soundtrack was also processed with volume normalization, noise reduction,
clipping reduction, and equalization:
The earliest headlamps were fuelled by acetylene or oil and were introduced in the late 1880s. 
Acetylene lamps were popular because the flame was resistant to wind and rain. The first electric headlamps were introduced in 1898 on the Columbia Electric Car from the Electric Vehicle Company 
of Hartford, Connecticut, and were optional. Two factors limited the widespread use of electric 
headlamps: the short life of filaments in the harsh automotive environment, and the difficulty of 
producing dynamos small enough, yet powerful enough to produce sufficient current.

Inga kommentarer:

Skicka en kommentar