welded specimen
1building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
2jewelry — /jooh euhl ree/, n. 1. articles of gold, silver, precious stones, etc., for personal adornment. 2. any ornaments for personal adornment, as necklaces or cuff links, including those of base metals, glass, plastic, or the like. Also, esp. Brit.,… …
3igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …
4literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
5Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury …
6Ferdinand Porsche — Born 3 September 1875(1875 09 03) Maffersdorf, Bohemia, Austro Hungarian Empire …
7Dacian bracelets — Dacian gold bracelet, dated to 1st century BC – 1st century AD, from Sarmizegetusa Romania [1][2] …
8Auschwitz concentration camp — Auschwitz and Auschwitz Birkenau redirect here. For the town, see Oświęcim. Distinguish from Austerlitz. Or see Auschwitz (disambiguation) Auschwitz Concentration camp …
9X-ray — [ 22 December 1895 and presented to Professor Ludwig Zehnder of the Physik Institut, University of Freiburg, on 1 January 1896. The dark oval on the third finger is a shadow produced by her ring. [cite book last = Kevles first =Bettyann Holtzmann …
10Reinforced concrete — is concrete in which reinforcement bars ( rebars ), reinforcement grids, plates or fibers have been incorporated to strengthen the concrete in tension. It was invented by French gardener Joseph Monier in 1849 and patented in 1867.[1] The term… …
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