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.
Perching Ambush Drones
'On the chest of drawers something was perched.' - Philip K. Dick, 1956.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Prairie Madness - And Space Sickness
'Space-sickness is one of the most unpleasant sensations that a human being can experience. Not all are subject to it...'
'Old People Began to Cross The Continent In Their Own Cars'
'It was a relief to enter one of the comfortable autos, whisper a direction down the tube, and just know that you would be taken to your destination in the quickest, safest, and cheapest manner.'
Starfall Manufacturing Drugs In Space
'The vast spinning sphere of Factory in the Sky loomed above and ahead of us, gleaming white against the unfathomable jet depths of surrounding space.'
The Solar Oberth Slingshot
'And if it doesn’t work,' inquired Lazarus, 'what does that make us? Sunspots?'
'If Anyone Is Watching Earth...'
'Our study of your race has convinced us that you are not fitted to leave your planet in the present state of your civilization.'