baffle board
51Soundproofing — is any means of reducing the intensity of sound with respect to a specified source and receptor. There are several basic approaches to reducing sound: increasing the distance between source and receiver, using noise barriers to block or absorb… …
52Ordnance QF 6 pounder — This article is about the World War II gun. For the 1880s naval gun and 1916 tank gun, see QF 6 pounder Hotchkiss. For the 1917 tank gun, see QF 6 pounder 6 cwt Hotchkiss. Ordnance QF 6 pounder 7 cwt …
53motion-picture technology — Introduction the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …
54stick — Synonyms and related words: abide, abide with, abrade, acid, acuminate, addle, adhere, adhere to, advocate, affix, agglomerate, all, alpenstock, altogether, amalgamate, amaze, antidepressant, arm, articulate, assert, ataractic, athletic supporter …
55Battle of Kursk — Operation Citadel Part of the Eastern Front of World War II …
56Hubble Space Telescope — Infobox Space telescope name = Hubble Space Telescope (HST) caption = The Hubble Space Telescope as seen from Space Shuttle Discovery during its second servicing mission (STS 82) organization = NASAESASTScI alt names = nssdc id =… …
57Christopher Pike (Star Trek) — Christopher Pike Species Human Home planet Earth Affiliation United Federation of Planets Starfleet Posting …
58Cheshire Cat — This article is about a character in Alice s Adventures in Wonderland. For other uses, see Cheshire Cat (disambiguation). Cheshire Cat Alice character The Cheshire cat as …
59Pedestrian crossing — Crosswalk redirects here. For other uses, see Crosswalk (disambiguation). An adult and child prepare to use a crosswalk in Haifa, Israel …
60Carol Ann Duffy — Infobox Writer name = Carol Ann Duffy imagesize = caption = pseudonym = birthname = birthdate = Birth date and age|1955|12|23 birthplace = Glasgow, Scotland deathdate = deathplace = occupation = Poet nationality = British period = genre = subject …
