If the hum of passing cars and the clatter of trains drives you to slam windows shut on a hot day, a new noise cancelling system could be music to your ears. Scientists have developed a sound control …
( read original story …)
If the hum of passing cars and the clatter of trains drives you to slam windows shut on a hot day, a new noise cancelling system could be music to your ears. Scientists have developed a sound control …
( read original story …)