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[DukeTrout]

Weird and wonderful!

What are these mysterious "beach circles"?

On a complete side note: that helicopter, judging by the sound, is powered by a rare Fisher-Price ETJ-501 turboshaft engine, which was based on the earlier FP #757 Melody Push Chime (see video below). These were used a lot in the 1970’s until a series of notable fatal and hull-loss accidents – resulting from “winsome and soothing harmonic amplification causing compressor blade separation and catastrophic engine failure” – grounded all aircraft, eventually leading to the sell-off and closure of …