magnetic wood

magnetic wood
Wood packed with magnetic particles that absorb microwave radio signals, particularly those emitted by cell phones.
Example Citations:
Americans seeking a legal way to jam cell phones can look into passive jamming technologies. For instance, lining your office in lead should ensure that no signals get in or out. But if lead is too industrial to suit your decor, a more genteel alternative exists: You could install magnetic wood paneling throughout. A Japanese scientist, Hideo Oka, has invented a new kind of building material, saturated with magnetic particles made of nickel-zinc ferrite that supposedly deflect 97 percent of mobile-phone signals.
— David S. Bennahum, "Hope You Like Jamming, Too," Slate Magazine, December 5, 2003
Magnetic wood that silences mobile phones could prevent mobile use in cinemas, restaurants, theatres or anywhere it is installed.
— Michelle Pountney, "Inventions defy belief," Herald Sun (Melbourne, Australia), December 14, 2002
Earliest Citation:
Magnetic wood could be a major plank in the battle against noisy cellphone users. The high-tech material absorbs microwave radio signals, making it impossible to use a mobile phone in any room lined with it. Or a radio for that matter. So theatres and restaurants, for example, can stop people using cellphones on their premises without resorting to signal jammers.
— Ian Sample, "Magnetic wood blocks mobile phone signals," New Scientist, June 27, 2002
The earliest media citation for magnetic wood is from 2002 (see below), but the phrase was in use before that. Here's a excerpt from an abstract of a 1999 technical article that tantalizingly suggests that the concept (if not the phrase) has been around since 1991:
Magnetic wood, wood which demonstrates magnetic characteristics, was introduced by the Oka group in 1991.
— Hideo Oka and Hiromitu Fujita, "Experimental study on magnetic and heating characteristics of magnetic wood," Journal of Applied Physics, April 15, 1999
Related Words: Categories:

New words. 2013.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Magnetic Hill Zoo — s logo, featuring its mascot, Tomar the Siberian Tiger. A Bald Eagle (Haliaeetus leucocephalus) at the Magnetic Hill Zoo …   Wikipedia

  • Wood — /wood/, n. 1. Grant, 1892 1942, U.S. painter. 2. Leonard, 1860 1927, U.S. military doctor and political administrator. * * * I Hard, fibrous material formed by the accumulation of secondary xylem produced by the vascular cambium. It is the… …   Universalium

  • Wood's lamp — wu̇dz also Wood lamp wu̇d n a lamp for producing ultraviolet radiation in which a filter made of nickel containing glass is used to block all light having a wavelength above 365 nanometers and which is used esp. to detect various skin conditions… …   Medical dictionary

  • Magnetic dip — Illustration of magnetic dip from Norman s book, The Newe Attractive Magnetic dip or magnetic inclination is the angle made by a compass needle with the horizontal at any point on the Earth s surface. Positive values of inclination indicate that… …   Wikipedia

  • Magnetic bearing — A magnetic bearing A magnetic bearing is a bearing which supports a load using magnetic levitation. Magnetic bearings support moving machinery without physical contact, for example, they can levitate a rotating shaft and permit relative motion… …   Wikipedia

  • wood — wood1 woodless, adj. /wood/, n. 1. the hard, fibrous substance composing most of the stem and branches of a tree or shrub, and lying beneath the bark; the xylem. 2. the trunks or main stems of trees as suitable for architectural and other… …   Universalium

  • Wood Thrush — Taxobox name = Wood Thrush status = LC | status system = IUCN3.1 status ref = IUCN2006|assessors=BirdLife International|year=2004|id=51580|title=Hylocichla mustelina|downloaded=12 May 2006 Database entry contains justification for why species is… …   Wikipedia

  • good wood — n. Wood that does not come from an endangered forest region or from an endangered tree species; wood grown on a plantation. Also: ethical wood, plantation wood, managed wood. Example Citation: Good wood is the new buzz term in furniture. And it… …   New words

  • New Magnetic Wonder — Studio album by The Apples in Stereo Released February 6, 2007 …   Wikipedia

  • Highgate Wood Telephone Exchange — Highgate Wood is a suburb in North London that was chosen as the site of a trial for an electronic telephone exchange built by members from Joint Electronic Research Council (JERC), which was formed in 1956 and consisted of the British Post… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”