Flying things could sqwak with the inverse of the Doppler transform when subsonic https://news.ycombinator.com/item?id=37886514 https://news.ycombinator.com/it

Flying things could sqwak with the inverse of the Doppler transform when subsonic https://news.ycombinator.com/item?id=37886514 https://news.ycombinator.com/item?id=37886514 : > FAA UAS RemoteID: https://www.faa.gov/uas/getting_started/remote_id https://www.faa.gov/uas/getting_started/remote_id Collision avoidance in transportation: https://en.wikipedia.org/wiki/Collision_avoidance_in_transportation https://en.wikipedia.org/wiki/Collision_avoidance_in_transpo...