but then you look at one of the examples like the pyramid one and YT analysis th... | Hacker News

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		rasz on June 26, 2021 \| parent \| context \| favorite \| on: Preliminary Assessment: Unidentified Aerial Phenom... but then you look at one of the examples like the pyramid one and YT analysis that took couple of days to pinpoint the direct cause https://olhardigital.com.br/en/2021/04/27/colunistas/suposto... NVD with 3 blade iris

bellyfullofbac on June 26, 2021 [–]

Wtf is NVD? An acronym database lists many explanations like Natural Vaginal Delivery.

truxten on June 26, 2021 | [–]

IIRC its Night Vision Device. Essentially night vision cameras have triangle shaped iris which causes triangle shaped lens flare - hence the triangles in the footage.

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