Energy flux
- P radiated
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- line integral
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- peak lobe
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Time-averaged. The polar plot is outward flux against angle; the dashed circle is zero.
Probes
Two probes at different distances let you measure c from the delay between them.
- source
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- path difference
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- measured delay
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- c from delay
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Wheel zooms · shift-drag pans · double-click adds a charge