The phenomenon of doughnut-shaped appearance in the sky of Belgium was arrested by the weather radar recently. Previously, the same phenomenon has also been arrested in Australia in 2010.
Doughnut on the sky? What's doughnut?
Some people had expected it a UFO. But do not be afraid, because the Doughnut Phenomenon is common natural phenomenon caused by melting snow in the atmosphere. Marc Dantonio, photos and videos analysts from the Mutual UFO Network, said that the phenomenon is called a melting circle. This occurs in a wide area thus forming a ring-shaped anomaly.
When capturing the image of melting snow, the radar could not capture an area located just above the antenna, called a "cone of silence". As a result, created a similar image of a doughnut with the middle that seemed hollow. Radar can only catch the outside of the region which can be reached, which is the outside of the doughnut. Meanwhile, the inside depending on the angle of the radar pointing to the sky.
Doughnut phenomenon is only one of many phenomena due to magic formula which can be captured by radar. According to Dantonio, this phenomenon should not be equalized with a UFO, but it should be named IRA (Identifiable Radar Anomalies). Doughnut phenomenon can be observed only on the weather radar screen. Doughnut looks big on screen because the radar has a range which good size. If the radar is in the mountains, doughnut may appear larger, with larger holes as well.
Doughnut space imagery is only visible in a moment on the radar screen. This caused the radar only emit a signal every seven seconds each hour.
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