Hard — or hardness may refer to: * Hardness, resistance of physical materials to change under force. * Hard water has a high mineral content. * Mathematical difficulty; see computational complexity theory. * A difficulty level in a video game. * Street… … Wikipedia
The R.E.D. Album — The R.E.D. Album … Wikipedia
Diamond-like carbon — A ta C thin film on silicon (15 mm diameter) exhibiting regions of 40 nm and 80 nm thickness … Wikipedia
metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… … Universalium
Cast iron — For cookware, see Cast iron cookware. Iron alloy phases Ferrite (α iron, δ iron) Austenite (γ iron) … Wikipedia
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
hard — [[t]hɑ͟ː(r)d[/t]] ♦ harder, hardest 1) ADJ GRADED Something that is hard is very firm and stiff to touch and is not easily bent, cut, or broken. He shuffled his feet on the hard wooden floor... Something cold and hard pressed into the back of his … English dictionary
Ballistic vest — A ballistic vest is an item of protective clothing that absorbs the impact from gun fired projectiles and shrapnel fragments from explosion. This protection is for the torso. Soft vests are made from many layers of woven or laminated fibers and… … Wikipedia
Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury … Wikipedia
Hope Diamond — French Blue redirects here. For the color, see French blue (color). Hope Diamond Hope Diamond in the Smithsonian Museum of Natural History Weight 45.52[1][2] … Wikipedia
