2. http://engineeringtv.com/blogs/etv/archive/2008/01/17/active-noise-cancellation-headsets.aspx
hi
this is ato zinstrumentation
this website one of its kinds which provides information about the technologies which are used in detection,monitoring,sensing and mapping or we say it as instrumentation technologies.
this website is started by the students of RV college of engineering bangalore and it is started with an ambition to grow to the form of encyclopedia reference for instrumentation.this site also would like to get feedback in the form of suggestions as well as comments and informationyou would like to share with us for the development of this site.
FOUNDER:
barath rajamani