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Magnetic levitation

Index Magnetic levitation

Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. [1]

99 relations: Acoustic levitation, Aerodynamic levitation, Alternating current, Aluminium, Andre Geim, Bismuth, Centrifuge, Conservative force, Copper, Cyclotron, Dashpot, Density, Diamagnetism, Dipole magnet, Drag (physics), Earnshaw's theorem, Eddy current, Electric field, Electric generator, Electric motor, Electrical conductor, Electrodynamic suspension, Electromagnet, Electrostatic levitation, Emile Bachelet, Eric Laithwaite, European Journal of Physics, Feedback, Ferromagnetism, Flux pinning, Flywheel, Force between magnets, Gordon Danby, Graphite, Gravitational acceleration, Gravitational field, Gyroscope, Halbach array, Hermann Kemper, Hyperloop, Hyperloop pod competition, Induction heating, Inductrack, James R. Powell, Launch loop, Lenz's law, Levitation, Levitron, Linear induction motor, Linear motor, ..., Litz wire, Lorentz force, Maglev, Magnet, Magnetic bearing, Magnetic field, Magnetic pressure, Magnetic ring spinning, Magnetic river, Magnetic susceptibility, Magnetostatics, Mechanical equilibrium, Meissner effect, Metre, Michael Berry (physicist), Optical levitation, Osaka Metro Nagahori Tsurumi-ryokuchi Line, Paramagnetism, Pascal (unit), Permeability (electromagnetism), Physics Today, Precession, Public transport, Pyrolytic carbon, Radboud University Nijmegen, Radio frequency, Robert Ochsenfeld, SCMaglev, Second, Servomechanism, Silver, Skin effect, Speed, Spin-stabilized magnetic levitation, StarTram, Superconductivity, Tesla (unit), TGV, Tom Shannon (artist), Transrapid, Tuned mass damper, Vacuum, Vacuum permeability, Vermont, Walther Meissner, Water, Werner Braunbeck, Wheel, Zippe-type centrifuge. Expand index (49 more) »

Acoustic levitation

Acoustic levitation (also: Acoustophoresis) is a method for suspending matter in a medium by using acoustic radiation pressure from intense sound waves in the medium.

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Aerodynamic levitation

Aerodynamic levitation is the use of gas pressure to levitate materials so that they are no longer in physical contact with any container.

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Alternating current

Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.

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Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.

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Andre Geim

Sir Andre Konstantin Geim, FRS, HonFRSC, HonFInstP (born 21 October 1958) is a Soviet-born Dutch-British physicist working in the School of Physics and Astronomy at the University of Manchester.

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Bismuth is a chemical element with symbol Bi and atomic number 83.

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A centrifuge is a piece of equipment that puts an object in rotation around a fixed axis (spins it in a circle), applying a force perpendicular to the axis of spin (outward) that can be very strong.

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Conservative force

A conservative force is a force with the property that the total work done in moving a particle between two points is independent of the taken path.

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Copper is a chemical element with symbol Cu (from cuprum) and atomic number 29.

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A cyclotron is a type of particle accelerator invented by Ernest O. Lawrence in 1929-1930 at the University of California, Berkeley, and patented in 1932.

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A dashpot is a mechanical device, a damper which resists motion via viscous friction.

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The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.

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Diamagnetic materials are repelled by a magnetic field; an applied magnetic field creates an induced magnetic field in them in the opposite direction, causing a repulsive force.

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Dipole magnet

A dipole magnet is a magnet in which opposite poles (i.e., North and South poles) are on opposite sides of the magnet.

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Drag (physics)

In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.

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Earnshaw's theorem

Earnshaw's theorem states that a collection of point charges cannot be maintained in a stable stationary equilibrium configuration solely by the electrostatic interaction of the charges.

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Eddy current

Eddy currents (also called Foucault currents) are loops of electrical current induced within conductors by a changing magnetic field in the conductor due to Faraday's law of induction.

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Electric field

An electric field is a vector field surrounding an electric charge that exerts force on other charges, attracting or repelling them.

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Electric generator

In electricity generation, a generator is a device that converts motive power (mechanical energy) into electrical power for use in an external circuit.

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Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy.

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Electrical conductor

In physics and electrical engineering, a conductor is an object or type of material that allows the flow of an electrical current in one or more directions.

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Electrodynamic suspension

Electrodynamic suspension (EDS) is a form of magnetic levitation in which there are conductors which are exposed to time-varying magnetic fields.

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An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

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Electrostatic levitation

Electrostatic levitation is the process of using an electric field to levitate a charged object and counteract the effects of gravity.

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Emile Bachelet

Emile Bachelet was born in France and later emigrated to the United States in the 1880s where he worked as an electrician.

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Eric Laithwaite

Eric Roberts Laithwaite (14 June 1921 – 27 November 1997) was an English electrical engineer, known as the "Father of Maglev" for his development of the linear induction motor and maglev rail system.

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European Journal of Physics

The European Journal of Physics is a peer-reviewed, scientific journal dedicated to maintaining and improving the standard of physics education in higher education.

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Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.

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Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets.

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Flux pinning

Flux pinning is the phenomenon where a superconductor is pinned in space above a magnet.

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A flywheel is a mechanical device specifically designed to efficiently store rotational energy.

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Force between magnets

Magnets exert forces and torques on each other due to the rules of electromagnetism.

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Gordon Danby

Gordon Thompson Danby (November 8, 1929 – August 2, 2016) was a Canadian-American physicist notable (together with Dr. James R. Powell) for his work on superconducting Maglev, for which he shared the Franklin Institute 'Medal 2000 for Engineering'.

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Graphite, archaically referred to as plumbago, is a crystalline allotrope of carbon, a semimetal, a native element mineral, and a form of coal.

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Gravitational acceleration

In physics, gravitational acceleration is the acceleration on an object caused by the force of gravitation.

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Gravitational field

In physics, a gravitational field is a model used to explain the influence that a massive body extends into the space around itself, producing a force on another massive body.

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A gyroscope (from Ancient Greek γῦρος gûros, "circle" and σκοπέω skopéō, "to look") is a device used for measuring or maintaining orientation and angular velocity.

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Halbach array

A Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side.

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Hermann Kemper

Hermann Kemper (5 April 1892 – 13 July 1977) was a German engineer and pioneer in magnetic levitation.

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A Hyperloop is a proposed mode of passenger and/or freight transportation, first used to describe an open-source vactrain design released by a joint team from Tesla and SpaceX.

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Hyperloop pod competition

The Hyperloop Pod Competition is a competition sponsored by SpaceX in 2015–2018 where a number of student and non-student teams are participating to design—and for some, build—a subscale prototype transport vehicle to demonstrate technical feasibility of various aspects of the Hyperloop concept.

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Induction heating

Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents.

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Inductrack is a passive, fail-safe electrodynamic magnetic levitation system, using only unpowered loops of wire in the track and permanent magnets (arranged into Halbach arrays) on the vehicle to achieve magnetic levitation.

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James R. Powell

James R. Powell is an American physicist, notable – together with Gordon Danby – for his work on superconducting Maglev, for which he shared the Franklin Institute "Medal 2000 for Engineering".

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Launch loop

A launch loop or Lofstrom loop is a proposed system for launching objects into space orbit using a moving cable-like system situated inside a sheath attached to the Earth at two ends and suspended above the atmosphere in the middle.

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Lenz's law

Lenz's law (pronounced), named after the physicist Heinrich Friedrich Emil Lenz who formulated it in 1834, states that the direction of current induced in a conductor by a changing magnetic field due to induction is such that it creates a magnetic field that opposes the change that produced it.

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Levitation (from Latin levitas "lightness") is the process by which an object is held aloft, without mechanical support, in a stable position.

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Levitron is a brand of levitating toys and gifts in science and educational markets marketed by Creative Gifts Inc.

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Linear induction motor

A linear induction motor (LIM) is an alternating current (AC), asynchronous linear motor that works by the same general principles as other induction motors but is typically designed to directly produce motion in a straight line.

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Linear motor

A linear motor is an electric motor that has had its stator and rotor "unrolled" so that instead of producing a torque (rotation) it produces a linear force along its length.

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Litz wire

Litz wire is a type of specialized multistrand wire or cable used in electronics to carry alternating current (AC) at radio frequencies.

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Lorentz force

In physics (particularly in electromagnetism) the Lorentz force is the combination of electric and magnetic force on a point charge due to electromagnetic fields.

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Maglev (derived from magnetic levitation) is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track as in levitation (hence Maglev, Magnetic-levitation), then another set to move the 'floating train' ahead at great speed taking advantage of the lack of friction.

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A magnet is a material or object that produces a magnetic field.

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Magnetic bearing

A magnetic bearing is a type of bearing that supports a load using magnetic levitation.

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Magnetic field

A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.

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Magnetic pressure

Magnetic pressure is an energy density associated with a magnetic field.

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Magnetic ring spinning

Magnetic Ring Spinning, magnetic spinning, or innovative spinning is a ring spinning technology for making yarn based on magnetic levitation.

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Magnetic river

Magnetic river is an electrodynamic magnetic levitation (maglev) system designed by Fredrick Eastham and Eric Laithwaite in 1974.

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Magnetic susceptibility

In electromagnetism, the magnetic susceptibility (Latin: susceptibilis, "receptive"; denoted) is one measure of the magnetic properties of a material.

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Magnetostatics is the study of magnetic fields in systems where the currents are steady (not changing with time).

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Mechanical equilibrium

In classical mechanics, a particle is in mechanical equilibrium if the net force on that particle is zero.

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Meissner effect

The Meissner effect (or Meissner–Ochsenfeld effect) is the expulsion of a magnetic field from a superconductor during its transition to the superconducting state.

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The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).

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Michael Berry (physicist)

Sir Michael Victor Berry, (born 14 March 1941), is a mathematical physicist at the University of Bristol, England.

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Optical levitation

Optical levitation is a method developed by Arthur Ashkin whereby a material is levitated against the downward force of gravity by counter forces stemming from photon momentum transfer.

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Osaka Metro Nagahori Tsurumi-ryokuchi Line

| The is an underground rapid transit system in Osaka, Japan, operated by Osaka Metro.

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Paramagnetism is a form of magnetism whereby certain materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field.

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Pascal (unit)

The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength.

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Permeability (electromagnetism)

In electromagnetism, permeability is the measure of the ability of a material to support the formation of a magnetic field within itself.

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Physics Today

Physics Today is the membership magazine of the American Institute of Physics that was established in 1948.

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Precession is a change in the orientation of the rotational axis of a rotating body.

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Public transport

Public transport (also known as public transportation, public transit, or mass transit) is transport of passengers by group travel systems available for use by the general public, typically managed on a schedule, operated on established routes, and that charge a posted fee for each trip.

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Pyrolytic carbon

Pyrolytic carbon is a material similar to graphite, but with some covalent bonding between its graphene sheets as a result of imperfections in its production.

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Radboud University Nijmegen

Radboud University Nijmegen (abbreviated as RU, Radboud Universiteit Nijmegen, formerly Katholieke Universiteit Nijmegen) is a public university with a strong focus on research located in Nijmegen, the Netherlands.

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Radio frequency

Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.

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Robert Ochsenfeld

Robert Ochsenfeld (18 May 1901 – 5 December 1993) was a German physicist.

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The SCMaglev (superconducting maglev, formerly called the MLU) is a magnetic levitation (maglev) railway system developed by Central Japan Railway Company (JR Central) and the company's Railway Technical Research Institute.

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The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.

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In control engineering a servomechanism, sometimes shortened to servo, is an automatic device that uses error-sensing negative feedback to correct the action of a mechanism.

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Silver is a chemical element with symbol Ag (from the Latin argentum, derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47.

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Skin effect

Skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductor such that the current density is largest near the surface of the conductor, and decreases with greater depths in the conductor.

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In everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity.

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Spin-stabilized magnetic levitation

Spin-stabilized magnetic levitation is a phenomenon of magnetic levitation whereby a spinning magnet or array of magnets is levitated via magnetic forces above another magnet or array of magnets, and stabilised by gyroscopic effect due to a spin that is neither too fast, nor too slow to allow for a necessary precession.

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StarTram is a proposal for a maglev space launch system.

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Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials, called superconductors, when cooled below a characteristic critical temperature.

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Tesla (unit)

The tesla (symbol T) is a derived unit of magnetic flux density (informally, magnetic field strength) in the International System of Units.

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The TGV (Train à Grande Vitesse, "high-speed train") is France's intercity high-speed rail service, operated by the SNCF, the state-owned national rail operator.

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Tom Shannon (artist)

Tom Shannon (born June 23, 1947), is an American artist and inventor.

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Transrapid is a German-developed high-speed monorail train using magnetic levitation.

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Tuned mass damper

A tuned mass damper, also known as a harmonic absorber or seismic damper, is a device mounted in structures to reduce the amplitude of mechanical vibrations.

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Vacuum is space devoid of matter.

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Vacuum permeability

The physical constant μ0, (pronounced "mu naught" or "mu zero"), commonly called the vacuum permeability, permeability of free space, permeability of vacuum, or magnetic constant, is an ideal, (baseline) physical constant, which is the value of magnetic permeability in a classical vacuum.

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Vermont is a state in the New England region of the northeastern United States.

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Walther Meissner

Fritz Walther Meissner (German: Meißner) (December 16, 1882 – November 16, 1974) was a German technical physicist.

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Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.

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Werner Braunbeck

Werner Braunbeck (German: Werner Braunbek; 8 January 1901 – 9 February 1977) was a German physicist.

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A wheel is a circular component that is intended to rotate on an axle bearing.

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Zippe-type centrifuge

The Zippe-type centrifuge is a gas centrifuge designed to enrich the rare fissile uranium isotope Uranium-235 out of the mixture of isotopes found in naturally occurring uranium compounds.

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[1] https://en.wikipedia.org/wiki/Magnetic_levitation

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