air-space paper insulation
71Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
72Breathing gas — is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas. Other artificial gases, either pure gases or mixtures of gases, are used in breathing equipment and enclosed… …
73Sustainable architecture — Sustainable architecture, is a general term that describes environmentally conscious design techniques in the field of architecture. Sustainable architecture is framed by the larger discussion of sustainability and the pressing economic and… …
74Door — For other uses, see Door (disambiguation). A door is a movable structure used to open and close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates inside of a space. When open, they admit ventilation… …
75Roof — A roof is the covering on the uppermost part of a building. A roof protects the building and its contents from the effects of weather. Structures that require roofs range from a letter box to a cathedral or stadium, dwellings being the most… …
76Green building — *LEED 2.0 Gold certified *Green Power *Native LandscapingGreen building is the practice of increasing the efficiency with which buildings use resources energy, water, and materials while reducing building impacts on human health and the… …
77Grand Rapids Art Museum — The Grand Rapids Art Museum is the world s first and only art museum whose entire facility is LEED certified. Located in the heart of downtown Grand Rapids, Michigan, the new building is the city s first museum space created specifically for… …
78Hyderabad, India — This article is about the city in India. For its namesake district, see Hyderabad district, India. Hyderabad హైదరాబాద్ حیدر آباد The City of Pearls   metropolitan city   …
79Polyethylene terephthalate — PETE redirects here. For the first name, see Peter (disambiguation). For other uses, see Pete (disambiguation). Polyethylene terephthalate fibre IUPAC name …
80List of problems solved by MacGyver — This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. (This list is not yet comprehensive.) MacGyver employs his resourcefulness and his knowledge of chemistry,… …
