Observations of the manner in which a modulated vertically falling jet of water breaks up (Fig. 1 and 2) have shown that a backward directed force appears at the point where the drops leave the continuous portion of the jet. This force excites towards the orifice propagating backward waves, which under certain conditions may reach the orifice and cause a sudden transfer of the breakup point to the orifice. This is a well known phenomenon generally observed when a watertap is carefully opened or closed.
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- A proposed large signal noise mechanism in crossed-field devices based on quasi-analogous hydrodynamic experiments
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