airtight door
21Ultrasonic welding — is an industrial whereby high frequency ultrasonic acoustic vibrations are locally applied to workpieces being held together under pressure to create a solid state weld. It is commonly used for plastics, and especially for joining dissimilar… …
22Nova (comics) — For the Herald of Galactus, see Nova (Frankie Raye). Nova Promotional cover art to Nova #1 (2007). Art by Adi Granov. Publication information …
23Passive house — The term passive house ( Passivhaus in German) refers to the rigorous, voluntary, Passivhaus standard for energy use in buildings. It results in ultra low energy buildings that require little energy for space heating or cooling. [… …
24A Pail of Air — Infobox short story name = A Pail of Air title orig = translator = author = Fritz Leiber country = flag|USA language = English series = genre = Science fiction short story released in = Galaxy Magazine publisher = Galaxy Publishing media type =… …
25Starships in Stargate — This is a list of starships in the Stargate franchise.Ancient starshipsThe Ancients are one of the most technologically advanced races in Stargate , and this is reflected in their starships. Duplicates of these ships are utilized by their nanite… …
26air lock — 1. Civ. Eng. an airtight chamber permitting passage to or from a space, as in a caisson, in which the air is kept under pressure. 2. the impedance in the functioning of a pump or a system of piping caused by the presence of an air bubble; vapor… …
27List of starships in Stargate — This is a list of starships in the Stargate franchise. Contents 1 Ancient starships 1.1 Gateship 1.2 Aurora class battleship 1.3 City ship …
28William Hope Hodgson's short stories — This page contains information about the short stories of William Hope Hodgson.=The Sargasso Sea Stories=For further details about William Hope Hodgson s Sargasso Sea cycle of stories, see the article on William Hope Hodgson s Sargasso Sea… …
29List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
30Mr. Monk Goes Back to School — Infobox Television episode Series = Monk Title = Mr. Monk Goes Back to School Season = 2 Episode = 1 Airdate = June 20, 2003 Writer = David Breckman Rick Kronberg Production = T 1401 Director = Randy Zisk Guests = Andrew McCarthy Rosalind Chao… …
