Rarefaction

... is affected by the radiation force in the tissue fluids. The bubbles expand and contract under the effect of the radiation force (compression and rarefaction), adding further stress to the cell boundaries. Bubble expansion and contraction without growing to a critical size is referred to as stable ...

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... are locked together in the vacuum, andof equal energy, and of equal amplitude once launched into the vacuum. What results is a vacuum EM wave of rarefaction (reduction in intensity) and compression (increase in intensity) of the virtual photon flux of vacuum" "old research i can dig ...

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