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Mark Bischof (born 1958, Duisburg) is a Dutch artist specializing in kinetic installations. [1] His works have been featured in the Ambient Art Gallery in Amsterdam, the film Kinetic, and in the motion picture Fracture . [2] Among his most impressive creations is Markrokosmos, a complex kinetic glass marble machine measuring 300x300x250cm.
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction:
In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest. Formally, a kinetic energy is any term in a system's Lagrangian which includes a derivative with respect to time.
Asteroid impact avoidance comprises the methods by which near-Earth objects (NEO) on a potential collision course with Earth could be diverted away, preventing destructive impact events. An impact by a sufficiently large asteroid or other NEOs would cause, depending on its impact location, massive tsunamis or multiple firestorms, and an impact winter caused by the sunlight-blocking effect of large quantities of pulverized rock dust and other debris placed into the stratosphere. A collision 66 million years ago between the Earth and an object approximately 10 kilometres wide is thought to have produced the Chicxulub crater and triggered the Cretaceous–Paleogene extinction event that is understood by the scientific community to have caused the extinction of all non-avian dinosaurs.
In physical sciences, mechanical energy is the sum of potential energy and kinetic energy. The principle of conservation of mechanical energy states that if an isolated system is subject only to conservative forces, then the mechanical energy is constant. If an object moves in the opposite direction of a conservative net force, the potential energy will increase; and if the speed of the object changes, the kinetic energy of the object also changes. In all real systems, however, nonconservative forces, such as frictional forces, will be present, but if they are of negligible magnitude, the mechanical energy changes little and its conservation is a useful approximation. In elastic collisions, the kinetic energy is conserved, but in inelastic collisions some mechanical energy may be converted into thermal energy. The equivalence between lost mechanical energy and an increase in temperature was discovered by James Prescott Joule.
Ho-Pin Tung is a Chinese-Dutch racing driver who races with a Chinese license.
Joshua Harter, better known by his ring name Chris Sabin, is an American professional wrestler. He is currently signed to Impact Wrestling, and is also known for his work in Ring of Honor.
Patrick Kenneth Martin is an American professional wrestler and physical therapy clinician, better known by the ring name, Alex Shelley, makes appearances with Impact Wrestling, where he is a former one-time X Division Champion and two-time World Tag Team Champion.
Jim LeRoy was an American aerobatics pilot. He died upon impact in a crash at the Dayton Air Show in Ohio.
Osteopenia, known as "low bone mass" or "low bone density", is a condition in which bone mineral density is low. Because their bones are weaker, people with osteopenia may have a higher risk of fractures, and some people may go on to develop osteoporosis. In 2010, 43 million older adults in the US had osteopenia. Unlike osteoporosis, osteopenia does not usually cause symptoms, and losing bone density in itself does not cause pain.
Windstream Holdings, Inc., also doing business as Windstream Communications or Windstream, is a provider of voice and data network communications, and managed services, to businesses in the United States. The company also offers residential broadband, phone and digital streaming TV services to consumers within its coverage area. It is the ninth largest residential telephone provider in the country with service covering more than 8.1 million people in 21 states.
Roger Lee Hayden is an American professional motorcycle racer, the younger brother of both 2006 MotoGP World Champion Nicky Hayden and AMA Superbike Championship rider Tommy Hayden.
The Motor City Machine Guns is an American professional wrestling tag team consisting of Alex Shelley and Chris Sabin. They are currently signed to Impact Wrestling, where they are two-time Impact World Tag Team Champions. The team name, which has been variably Motor and Murder City, is a play on the nickname of Detroit, the hometown of both Shelley and Sabin. The duo also make appearances for New Japan Pro-Wrestling (NJPW), on the NJPW Strong brand, where they are the current Strong Openweight Tag Team Champions.
A compression fracture is a collapse of a vertebra. It may be due to trauma or due to a weakening of the vertebra. This weakening is seen in patients with osteoporosis or osteogenesis imperfecta, lytic lesions from metastatic or primary tumors, or infection. In healthy patients, it is most often seen in individuals suffering extreme vertical shocks, such as ejecting from an ejection seat. Seen in lateral views in plain x-ray films, compression fractures of the spine characteristically appear as wedge deformities, with greater loss of height anteriorly than posteriorly and intact pedicles in the anteroposterior view.
Honda Motorcycle and Scooter India, Private Limited (HMSI) is the wholly owned Indian subsidiary of Honda Motor Company, Limited, Japan. Founded in 1999, it was the fourth Honda automotive venture in India, after Kinetic Honda Motor Ltd (1984–1998), Hero Honda (1984–2011) and Honda Siel Cars India (1995–2012). HMSI was established in 1999 at Manesar, District Gurgaon, Haryana.
Hydrogen pipeline transport is a transportation of hydrogen through a pipe as part of the hydrogen infrastructure.
Alexander Balankin is a Mexican scientist of Russian origin whose work in the field of fractal mechanics and its engineering applications won him the UNESCO Science Prize in 2005.
A kinetic energy recovery system (KERS) is an automotive system for recovering a moving vehicle's kinetic energy under braking. The recovered energy is stored in a reservoir for later use under acceleration. Examples include complex high end systems such as the Zytek, Flybrid, Torotrak and Xtrac used in Formula One racing and simple, easily manufactured and integrated differential based systems such as the Cambridge Passenger/Commercial Vehicle Kinetic Energy Recovery System (CPC-KERS).
An intramedullary rod, also known as an intramedullary nail or inter-locking nail or Küntscher nail, is a metal rod forced into the medullary cavity of a bone. IM nails have long been used to treat fractures of long bones of the body. Gerhard Küntscher is credited with the first use of this device in 1939, during World War II, for soldiers with fractures of the femur. Prior to that, treatment of such fractures was limited to traction or plaster, both of which required long periods of inactivity. IM nails resulted in earlier return to activity for the soldiers, sometimes even within a span of a few weeks, since they share the load with the bone, rather than entirely supporting the bone.
Hans Ulrich "Uli" Aschenborn is a Southern African animal painter. The musea in Windhoek and Swakopmund (Namibia) have artwork of Uli as well as the National Art Gallery of Namibia.
Olle Cornéer also known as Olof Cornéer is a Swedish artist from Stockholm, known best as being one half of the DJ duo Dada Life.
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