power riveting
31American modernism — like modernism in general is a trend of thought that affirms the power of human beings to create, improve, and reshape their environment, with the aid of scientific knowledge, technology and practical experimentation, and is thus in its essence… …
32Curtiss P-40 Warhawk — P 40 redirects here. For other uses, see P 40 (disambiguation). P 40 Warhawk Tomahawk / Kittyhawk A Hawk 87A 3 (Kittyhawk …
33aluminum processing — Introduction preparation of the ore for use in various products. Aluminum, or aluminium (Al), is a silvery white metal with a melting point of 660° C (1,220° F) and a density of 2.7 grams per cubic centimetre. The most abundant… …
34Soldering — For the song, see Soldering (song). For the product, see Solder. Desoldering a contact from a wire. Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal (solder) into the joint, the… …
35Mario Vargas Llosa — This name uses Spanish naming customs; the first or paternal family name is Vargas and the second or maternal family name is Llosa. Mario Vargas Llosa …
36Technology during World War II — World War II seriesv · d · e …
37Supermarine Spitfire (late Merlin powered variants) — Infobox Aircraft name =Spitfire type =Fighter manufacturer =Supermarine caption =Supermarine Spitfire VIII in the markings of 457(RAAF) Sqn designer =R. J. Mitchell first flight =5 March 1936 introduction =1938 retired =1955, RAF status = primary …
38SR Merchant Navy class — SR Merchant Navy class[1] Official Southern Railway photograph of 21C1 Channe …
39Atomic clock — Nuclear clock redirects here. For the clock as a measure for risk of catastrophic destruction, see Doomsday Clock. For a clock updated by radio signals (commonly but inaccurately called an atomic clock ), see Radio clock. For the album by Zion I …
40History of Alabama — Alabama became a state of the United States of America in 1819. After the Indian wars of the 1830s pushed Native Americans out of the state, white settlers arrived in large numbers. Wealthy planters created large cotton plantations based in the… …
