Aeroplane passengers may no longer have to yell at each other to be heard. Ultra Electronics of Cambridge, UK, has designed a passenger seat that halves the perceived ambient noise inside most aircraft cabins.
The trick is done through a sound-cancelling device built into the headrests. A microphone samples sound around the head of the passenger with frequencies up to one kilohertz, including the roar of the engines, the hum of the air conditioners and the
Technology Partners: MimirTech
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/stealth-flier
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pollution-control
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/noise-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-transport
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
