A flying saucer surveillance drone has been created by a British start-up company. Aesir has a prototype called Embler" that uses the "Coandă effect" which supposedly provides better lift for the device.
Take a look at the well-controlled flying saucer drone in the video below.
(Aesir flying saucer drone video)
The Coandă effect was first demonstrated in aircraft by Henri Coandă in 1910. The effect can be described as the tendency of a jet of air (or more dense fluid) to stay attached to a close-by curved surface that is appropriately shaped
This flying saucer from Aesir looks a lot more cool than the ceiling fan hovering drone in Michael Crichton's 1985 movie Runaway.
Update 30-Jul-09: Take a look at this picture of the drones from the recent Dark Angel series starring Jessica Alba. The drones were played an especially important role in one episode - they had been modified to assassinate. Throughout the series, Jessica (Max in-story) had to dodge the drones so as to not be detected.
A System To Defeat AI Face Recognition
'...points and patches of light... sliding all over their faces in a programmed manner that had been designed to foil facial recognition systems.' - Neal Stephenson, 2019.
Smart TVs Are Listening!
'You had to live -- did live, from habit that became instinct -- in the assumption that every sound you made was overheard...' - George Orwell, 1948.
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A System To Defeat AI Face Recognition
'...points and patches of light... sliding all over their faces in a programmed manner that had been designed to foil facial recognition systems.'