Clamoring for quiet: new ways to mitigate noise.
New technologies are providing innovative ways to reduce sound levels in many areas. Aircraft engineers are finding ways to reduce the noise produced by jet engines, while road builders are using rubber-enhanced pavement to quiet highway noise. Indoor acoustics are benefiting from materials that transform sound waves to heat, and so-called active noise control reduces harmful sounds through production of a mirror-image sound field. And new lawn equipment makes weekends at home quieter for yard lovers and their neighbors.
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D004430:Ear Protective Devices; D004777:Environment; D004867:Equipment Design; D005160:Facility Design and Construction; D006801:Humans; D009624:Noise, Transportation / Q000009:adverse effects* / Q000517:prevention & control*; D013672:Technology / Q000639:trends; D014481:United States