(soundproofing)
41Mineral wool — close up. Mineral wool under micr …
42Rumours — For other uses, see Rumor (disambiguation). I Don t Want to Know redirects here. For other uses, see I Don t Wanna Know (disambiguation). Rumours …
43Pyrotechnics — The term pyrotechnics can also be used for fireworks events. Pyrotechnics is the science of materials capable of undergoing self contained and self sustained exothermic chemical reactions for the production of heat, light, gas, smoke and/or sound …
44Great White — This article is about American hard rock band. For the roller coaster, see The Great White. For the shark, see Great white shark. For other uses, see Great White (disambiguation). Great White Great White live on 11 July 2008 at the …
45Narita International Airport — 成田国際空港 Narita Kokusai Kūkō IATA: NRT – ICAO: RJAA …
46Minneapolis-Saint Paul International Airport — Infobox Airport name = Minneapolis Saint Paul International Airport image width = 175 image2 width = 150 caption2 = FAA Airport Diagram IATA = MSP ICAO = KMSP FAA = MSP type = Public owner = MAC city served = flagicon|United States Minneapolis… …
47Noise-cancelling headphones — Showing 13.5φEX Headphone with noise cancellation from Sony Walkman Series NW S705F Noise cancelling headphones reduce unwanted ambient sounds (i.e., acoustic noise) by means of active noise control (ANC). This involves using one or more… …
48Acoustical engineering — is the branch of engineering dealing with sound and vibration. It is closely related to acoustics, the science of sound and vibration. Acoustical engineers are typically concerned with:* how to reduce unwanted sounds * how to make useful sounds * …
49Anechoic chamber — An anechoic chamber An anechoic chamber (an echoic meaning non echoing or echo free) is a room designed to stop reflections of either sound or electromagnetic waves. They are also insulated from exterior sources of noise. The combination of both… …
50Morris Marina — Manufacturer British Leyland Also called Austin Marina [1] Leyland Marina (Australia) …
