foam concrete
51Duct (HVAC) — A round galvanized steel duct connecting to a typical diffuser Fire resistance rated …
52MythBusters (2008 season) — Country of origin Australia United States No. of episodes 20 (includes 8 specials) Broadcast Original channel Discovery Channel …
53Mat (gymnastics) — For other uses, see Mat (disambiguation). Mats are used for safety in gymnastics, and in training new skills. They are usually a piece of foam ranging from 1.5 28 inches thick, covered in a vinyl or plastic lining. The foam ranges in density …
54MythBusters (2009 season) — Country of origin Australia United States No. of episodes 23 (includes 3 specials) Broadcast Original channel …
55Shag Harbour UFO incident — The Shag Harbour UFO Incident was the documented impact of an unknown large object into Shag Harbour, Nova Scotia in October 1967. The crash was investigated by various Canadian government agencies, and at least one underwater search was launched …
56Sprung floor — A sprung floor is a floor that absorbs shocks giving it a softer feel. Such floors are considered the best available for dance and indoor sports and physical education.They enhance performance and greatly reduce injuries. Modern sprung floors are …
57Canada's Worst Driver 3 — Infobox Television show name = Canada s Worst Driver 3 caption = Canada s Worst Driver Logo format = Reality television runtime = 60 minutes creator = developer = Proper Television producer = Blair Ricard executive producer = Guy O Sullivan… …
58Siding — For other uses, see Siding (disambiguation). Corrugated steel siding, for the side of a barn. Siding is the outer covering or cladding of a house meant to shed water and protect from the effects of weather. On a building that uses siding, it may… …
59External wall insulation — system= External wall insulation system (EWIS) a thermally insulated, protective, decorative exterior cladding system which consist of: *foamed polystyrene *mineral wool *polyurethane foam *mineral or synthetic plasterThermal insulation thickness …
60NASA spin-off — Science and technology in the United States African American contributions Discoveries …
