The water jet dances

The dancing water jet
As the up-going flow bumps into the down-going, it starts to twist and bend. Botanical garden, Gothenburg, Sweden. Photo(s): Lasse Johansson

The jet of water ejects out of the nozzle in a continuous, steady flow. Directing my eyes towards the opening, there is not a trace of pulsation.

Yet just slightly above, the dance has begun. As the upward movement is gradually lost, the water jet starts to twist and bend, like a rubber band being pushed.

Then it turns around and sweeps down, now on this side, now on that, now hitting the up going flow and, for a moment, almost extinguishing it, and then it moves on again, unpredictable. Never at rest, oscillating, yet not repeating itself – its aperiodic undulations never reveal what is next to come. Continue reading The water jet dances