welding practice
91Photokeratitis — Snow blindness redirects here. For other uses, see Snowblind (disambiguation). Photokeratitis Classification and external resources ICD 10 H16.1 ICD 9 …
92Jewellery — (also spelled jewelry, see spelling differences) is a personal ornament, such as a necklace, ring or bracelet, made from gemstones, precious metals or other materials.The word jewellery is derived from the word jewel , which was anglicised from… …
93Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …
94List of ISO standards — This is a list of ISO standards that are discussed in Wikipedia articles. For a list of all the more than 16,000 ISO standards (as of 2007), see the [http://www.iso.org/iso/en/CatalogueListPage.CatalogueList ISO Catalogue] .About 300 of the… …
95Mask — For other uses, see Mask (disambiguation). This stone mask from the pre ceramic neolithic period dates to 7000 BCE and is probably the oldest mask in the world (Musée de la Bible et de la Terre Sainte) …
96Cromwell tank — Tank, Cruiser, Mk VIII, Cromwell (A27M) Cromwell held in a Museum Type Cruiser tank Place of origin …
97Modified atmosphere — Testing the atmosphere in a plastic bag of carrots Modified atmosphere is the practice of modifying the composition of the internal atmosphere of a package (commonly food packages, drugs, etc) in order to improve the shelf life. The modification… …
98SR Merchant Navy Class — Infobox Locomotive powertype=Steam name = SR Merchant Navy ClassHarvey] caption = Official Southern Railway photograph of 21C1 Channel Packet as built, 1941. designer = Oliver Bulleid builder = SR Eastleigh Works builddate = 1941 ndash;1949… …
99Katana construction — was the labour intensive bladesmithing process developed in Japan for forging katana and other Japanese blades. Katana and wakizashi were often forged with different profiles, different blade thicknesses, and varying amounts of grind. Wakizashi… …
100Cushioning — Package cushioning is used to help protect fragile items during shipment. It is common for a transport package to be dropped, kicked, and impacted: These events may produce potentially damaging shocks. Transportation vibration from conveyors,… …
