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Latest Mechanical resonance Stories

2013-05-01 15:00:27

In this month's issue of Physics World, an international group of researchers propose a new technology that could divert vibrations away from load-bearing elements of bridges to avoid catastrophic collapses. Michele Brun, Alexander Movchan, Ian Jones and Ross McPhedran describe a "wave bypass" technique that has many similarities to those being used by researchers looking to create Harry Potter-style invisibility cloaks, which exploit man-made materials known as metamaterials to bend light...

2011-12-06 22:45:10

Model shows that signal clarity only improves if specific energy conditions are met Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic resonance), in a paper that has just been published in EPJ B´. Stochastic resonance goes against the intuitive idea that where noise is present, the signal tends to fade. It occurs in...

2010-07-22 12:27:42

An invisibility cloak made of glass From Tolkien's ring of power in The Lord of the Rings to Star Trek's Romulans, who could make their warships disappear from view, from Harry Potter's magical cloak to the garment that makes players vanish in the video game classic "Dungeons and Dragons, the power to turn someone or something invisible fascinates mankind. But who ever thought that a scientist at Michigan Technological University would be serious about building a working invisibility cloak?...

2009-07-24 09:18:47

A power system now in development could charge cell phones and other gadgets without the use of wires, researchers at a conference in Britain said. Researchers at the Massachusetts Institute of Technology are experimenting with the physical phenomenon of resonance, which causes an object to vibrate when energy frequencies are applied, MIT Professor Marin Soljacic said in Oxford at the TED Global Conference on ideas worth spreading. It is resonance, for example, that causes a glass to explode...


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.