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Artificial lift is the use of artificial means to increase the flow of liquids, such as crude oil or water, from a production well. Generally this is achieved by the use of a mechanical device inside the well (known as pump or velocity string) or by decreasing the weight of the hydrostatic column by injecting gas into the liquid some distance down the well.
An exhibit of the "Future Soldier" designed by the United States ArmyA powered exoskeleton (also known as power armor, powered armor, powered suit, cybernetic suit, robot armor, robot suit, high-tech armor, robotic armor, robot armor suit, cybernetic armor, exosuit, hardsuit, exoframe or augmented mobility [1]) is a mobile machine that is wearable over all or part of the human body, providing ...
Artificial muscles constructed from ordinary fishing line and sewing thread can lift 100 times more weight and generate 100 times more power than a human muscle of the same length and weight. [10] Individual macromolecules are aligned with the fiber in commercially available polymer fibers. By winding them into coils, researchers make ...
Anti-gravity. Artistic depiction of a fictional anti-gravity vehicle. Anti-gravity (also known as non-gravitational field) is a hypothetical phenomenon of creating a place or object that is free from the force of gravity. It does not refer to either the lack of weight under gravity experienced in free fall or orbit, or to balancing the force of ...
A pair of AFO (Ankle Foot Orthosis) braces being used to aid bilateral foot drop. Orthotics (Greek: Ορθός, romanized: ortho, lit. 'to straighten, to align') is a medical specialty that focuses on the design and application of orthoses, sometimes known as braces or calipers. [1]
A tractor beam is a device that can attract one object to another from a distance. [1] The concept originates in fiction: The term was coined by E. E. Smith (an update of his earlier "attractor beam") in his novel Spacehounds of IPC (1931). Since the 1990s, technology and research have labored to make it a reality, and have had some success on ...
An orbital ring that has fixed tethers hanging down to the ground. The stations produce lift by bending the ring cable downward as it passes through them. An orbital ring is a concept of an artificial ring placed around a body and set rotating at such a rate that the apparent centrifugal force is large enough to counteract the force of gravity.
Orographic lift. A gravity wave cloud pattern—analogous to a ship wake —in the downwind zone behind the Île Amsterdam, seen from above over the far southern Indian Ocean. The island generates wave motion in the wind passing over it, creating regularly spaced orographic clouds. The wave crests raise and cool the air to form clouds, while ...