Added | Mon, 10/10/2016 |
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At festivals and presentations occasionally used apparatus for producing artificial clouds of different shapes. Clouds consist of "foam fluid + water + gas" (helium). Foamy clouds usually can fly in the sky at an altitude of 10-150 meters, and can stay in the air for about 20 minutes. Due to the refraction of light foamy clouds look like white, but can be other colors.
A UFO can be taken both day and night (due to reflected light).
Translated by «Yandex.Translator»
The launch of artificial clouds.
Translated by «Yandex.Translator»
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