Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A decrease in the wavelength of radiation emitted by an approaching celestial body as a consequence of the Doppler effect.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From the fact that the shorter wavelengths of light are at the blue end of the visible spectrum.]
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Examples
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gulyasrobi commented on the word blue shift
"The International Energy Agency’s Blue Shift scenario assumes that the demand for private mobility is reduced by a combination of the following:
Better urban planning
Infrastructure improvements
Better public transit systems such as BRT, light rail and inter-city high-speed rail systems
Policy measures that encourage use of these modes"
http://www.unep.org/transport/gfei/autotool/understanding_the_problem/flanking_measures.asp
May 23, 2012