FIELD: producing acoustic and light effects for entertaining and show purposes, etc. SUBSTANCE: the device has an open vessel with a bubbler positioned in the bottom part, and filled with liquid containing a surface-active agent, an ignition device is installed above the liquid level. Bubbling of fuel and inflammable compounds causes foaming. As the foam volume increases, foam crawls over the ignition device, inflames and falls off, then the cycle is repeated. Inflammation of foam is accompanied by flares and startings of flame, acoustic effects. EFFECT: provision for continuous renewal of pyrotechnical compound. 2 dwg
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