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Latest Noise Stories

2012-02-22 21:31:29

Sparrows, blackbirds and the great tit are all birds known to sing at a higher pitch (frequency) in urban environments. It was previously believed that these birds sang at higher frequencies in order to escape the lower frequencies noises of the urban environment. Now, researchers at the University of Copenhagen and the University of Aberystwyth have discovered that besides noise, the physical structure of cities also plays a role in altering the birds´ songs. Urban birds sing...

2012-01-05 21:05:00

Power outages are a common occurrence in the Dominican Republic, and industrial noise pollution from emergency generators is a growing concern. One DC generator designer is using QuietFiber noise absorbing material to lower the decibel levels at the La Serena superstore in Higuey. Higuey, Dominican Republic (PRWEB) January 05, 2012 Installation of QuietFiber® noise absorbing material has been completed in the massive generator room of the newly constructed La Sirena superstore in the...

2011-12-22 07:34:19

Nine out of 10 city dwellers may have enough harmful noise exposure to risk hearing loss, and most of that exposure comes from leisure activities. Historically, loud workplaces were blamed for harmful noise levels. But researchers at the University of Michigan found that noise from MP3 players and stereo use has eclipsed loud work environments, said Rick Neitzel, assistant professor in the U-M School of Public Health and the Risk Science Center. Robyn Gershon, a professor with the...

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...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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