This phenomenon is exploited in substances with a closed optical loop, such as rubidium-85, to facilitate laser-cooling into Bose-Einstein condensate. Its transverse and relativistic forms occur due to time dilation when an object approaches the speed of light. For a laterally-moving object, the mag
This phenomenon is exploited in substances with a closed optical loop, such as rubidium-85, to facilitate laser-cooling into Bose-Einstein condensate. Its transverse and relativistic forms occur due to time dilation when an object approaches the speed of light. For a laterally-moving object, the magnitude of this effect is proportional to the cosine of the angle between it and its viewer. Usually given as a proportion dependent on observer and source velocity, it is the cause of blueshift and redshift. For 10 points, name this effect in which a wave's frequency changes as it moves relative to the observer, often used in weather radar and perceived in passing ambulance sirens.
This phenomenon is exploited in substances with a closed optical loop, such as rubidium-85, to facilitate laser-cooling into Bose-Einstein condensate.
Doppler-Fizeau effect [accept Doppler shift]