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caption

Historic image of an anechoic chamber. "Accurate acoustical measurments require a room that is free from noise and reflecting surfaces, just as precise optical tests require a space that is free from extraneous light and reflections. This was the reason for the construction of the Bell Laboratories "Free Space Room," a 38 by 28 by 45 foot enclosure in which the absence of noise and freedom from reflecting surfaces simulates the acoustical conditions of unobstructed, unconfined free space.

headline Science Source December 28, 2009 DVD

created date 2011-03-20

credit EAST NEWS

source Science Source

byline Omikron

original transmission reference 9a6069

weight 2,91MB

size 26cm x 31cm by 300dpi

keywords - Show

28, 38, 45, A, ABSENCE, ACCURATE, ACOUSTICAL, AN, AND, ANECHOIC, AS, ATTENUATE, ATTENUATION, AUDITORY, BELL, BEZPLATNA, BEZPLATNE, BEZPLATNY, BRAK, BUDOWNICTWO, BW, BY, CHAMBER, CICHO, CIESNINA, CISZA, CONDITIONS, CONSTRUCTION, CZLOWIEK, DARMOWA, DARMOWE, DARMOWY, DOKLADNA, DOKLADNE, DOKLADNY, DZIELO, DZWIEK, DZWON, DZWONEK, ENCLOSURE, EXTRANEOUS, FOOT, FOR, FREE, FREEDOM, FROM, HISTORIA, HISTORIC, HISTORY, HISTORYCZNA, HISTORYCZNE, HISTORYCZNY, IMAGE, IN, IS, JASNA, JASNY, JUST, KOSMOS, LAB, LABORATORIA, LABORATORIES, LABORATORIUM, LABORATORY, LABS, LEKKA, LEKKI, LEKKIE, LIGHT, LUDZIE, MAN, MEASURMENTS, MEN, MEZCZYZNA, MEZCZYZNI, MIC, MICROPHONE, MIEJSCE, MIKROFON, NIEOBECNOSC, NOISE, OBRAZ, ODBICIA, ODBIJAJACA, ODBIJAJACE, ODBIJAJACY, OF, OMIKRON, OPTICAL, PEOPLE, POKOJ, PRACA, PRECISE, PROOF, PRZESTRZEN, QUIET, REASON, REFLECTING, REFLECTIONS, REQUIRE, ROOM, SIMULATES, SOUND, SOUNDPROOFING, SPACE, SPOKOJ, STOPA, STOPY, SURFACES, SWIATLO, TECH, TECHNOLOGIA, TECHNOLOGY, TESTS, TESTY, THAT, THE, THIS, UNCONFINED, UNOBSTRUCTED, W, WAS, WHICH, WIZERUNEK, WOLNOSC, WORK, ZDJECIE,