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This effect named for an Austrian man manifests itself in receding siren noises & cosmic red-shifting expansion |
the Doppler effect
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$1,200 |
DJ |
A MIX OF SCIENCE |
2024-12-03 |
#9217 |
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This physicist's effect is the change in a wave's frequency based on this relative motion between observer & source |
the Doppler effect
DD
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$4,000 |
DJ |
SCIENCE |
2021-06-28 |
#8431 |
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In this "effect" first described in 1842, the pitch of a train whistle seems to change as it moves |
the Doppler effect
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$600 |
DJ |
SCIENCE |
1996-09-10 |
#2762 |
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Radar guns used by police to judge automobile speeds make use of this scientific "effect" |
the Doppler effect
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$800 |
DJ |
PHYSICAL SCIENCE |
1991-05-09 |
#1554 |