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Latest Levitation Stories

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2009-06-08 13:00:00

A superconducting sheet of lead only two atoms thick, the thinnest superconducting metal layer ever created, has been developed by physicists at The University of Texas at Austin.Dr. Ken Shih and colleagues report the properties of their superconducting film in the June 5 issue of Science.Superconductors are unique because they can maintain an electrical current indefinitely with no power source. They are used in MRI machines, particle accelerators, quantum interference devices and other...

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2009-05-16 09:45:00

Of the 92 naturally occurring elements, add another to the list of those that are superconductors.James S. Schilling, Ph.D., professor of physics in Arts & Sciences at Washington University in St. Louis, and Mathew Debessai "” his doctoral student at the time "” discovered that europium becomes superconducting at 1.8 K (-456 °F) and 80 GPa (790,000 atmospheres) of pressure, making it the 53rd known elemental superconductor and the 23rd at high pressure.Debessai, who...

2009-04-30 12:06:34

Physicists at the U.S. Department of Energy's Ames Laboratory have experimentally demonstrated that the superconductivity mechanism in the recently-discovered iron-arsenide superconductors is unique compared to all other known classes of superconductors. These findings "“ combined with iron-arsenide's potential good ability to carry current due to their low anisotropy "“ may open a door to exciting possible applications in zero-resistance power transmission.The research, led by...

2009-03-26 10:05:45

Though a year has passed since the discovery of a new family of high-temperature superconductors, a viable explanation for the iron-based materials' unusual properties remains elusive. But a team of scientists working at the National Institute of Standards and Technology (NIST) may be close to the answer.The team has found strong evidence that magnetism is a pivotal factor governing the physical properties of iron pnictides, a group of materials that conduct electricity without resistance at...

2009-03-20 10:53:24

Scientists at the University of Liverpool and Durham University have developed a new material to further understanding of how superconductors could be used to transmit electricity to built-up areas and reduce global energy losses. The team has produced a material from a football-shaped molecule, called carbon60, to demonstrate how a superconductor "“ an element, compound or alloy that does not oppose the steady passage of an electric current "“ could work at temperatures suitable...

2009-03-17 11:26:48

Scientists at the Naval Research Laboratory (NRL) have proposed theoretical models to explain the normal magnetic properties in iron-based superconductors. This research was published in the December 21, 2008 issue of Nature Physics. Their research builds on earlier research they conducted proposing a theoretical model for superconductivity in newly discovered iron-based superconductors. That earlier research was published in Physical Review Letters.To set the stage for the NRL researchers'...

2009-02-23 08:58:26

Scientists from Queen Mary, University of London and the University of Fribourg (Switzerland) have found evidence that magnetism is involved in the mechanism behind high temperature superconductivity. Writing in the journal Nature Materials, Dr Alan Drew from Queen Mary's Department of Physics and his colleagues at the University of Fribourg report on the investigation of a new high temperature superconductor, the so-called oxypnictides. They found that these exhibit some striking...

2009-01-13 11:36:06

Scientists at U.S. Department of Energy's Argonne National Laboratory used inelastic neutron scattering to show that superconductivity in a new family of iron arsenide superconductors cannot be explained by conventional theories.Funding for this research was provided by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences.  The mission of the Basic Energy Sciences (BES) program - a multipurpose, scientific research effort - is to foster and support...

2009-01-09 07:40:00

'Shovel-ready' project could move forward within 90 days of funding CALIFORNIA, Pa., Jan. 9 /PRNewswire-USNewswire/ -- California University of Pennsylvania and Pittsburgh-based U.S. Maglev Development Corp. are urging lawmakers to include Cal U's urban maglev demonstration project in the proposed $750 billion federal economic stimulus legislation now under discussion on Capitol Hill. Congress is expected to pass the economic stimulus package within weeks, and President-elect Barack Obama...

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2009-01-08 15:05:00

Scientists say they have discovered the mechanism that causes tiny objects to levitate, a discovery that may pave the way for the ability to create nanotechnology machines in the future. The apparent levitation was observed as a result of repulsive force between a thin sheet of silica and a small gold-plated bead, Harvard physicist Federico Capasso and colleagues reported in the journal Nature.This so-called Casimir force of repulsion could be replicated and used to create friction-free parts...


Latest Levitation Reference Libraries

Maglev
2014-04-11 09:17:26

Maglev is a vehicle propulsion system that uses magnetic levitation to move a vehicle with magnets instead of wheels. The vehicle hovers a short distance above the guide way by magnets and also uses the magnets for motion. The operation of this system is quite and maintains less friction for improved acceleration and deceleration. Weather does not affect the performance of the vehicle. Currently, some trains make use of the Maglev system, but vacuum tube trains could allow a Maglev system...

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2010-09-23 20:39:09

An electromagnet, a magnet whose magnetic field is produced by the flow of electric current, works until the electric current ceases. The magnetic field in a simple electromagnet is created by a wire passing through it with an electric current. The strength of the magnet depends on the amount of current. By making the wire into a coil the magnetic field is concentrated. A straight tube coil is a solenoid. A stronger magnetic field can be produced by putting a ferromagnetic material, such as...

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Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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