Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… … Wikipedia
Pottery — Pot and Pots redirect here. For Pot, see Pot (disambiguation). For POTS, see POTS (disambiguation). Unfired green ware pottery on a traditional drying rack at Conner Prairie living history museum … Wikipedia
Precious Stones in the Bible — Precious Stones in the Bible † Catholic Encyclopedia ► Precious Stones in the Bible Precious stones are stones remarkable for their colour, brilliancy, or rarity. Such stones have at all times been held in high esteem everywhere,… … Catholic encyclopedia
Glossary of cue sports terms — The following is a glossary of traditional English language terms used in the three overarching cue sports disciplines: carom (or carambole) billiards referring to the various carom games played on a billiard table without pockets; pool (pocket… … Wikipedia
sponge — spongeless, adj. spongelike, adj. spongingly, adv. /spunj/, n., v., sponged, sponging. n. 1. any aquatic, chiefly marine animal of the phylum Porifera, having a porous structure and usually a horny, siliceous or calcareous internal skeleton or… … Universalium
Vulcanian eruption — Vulcanian eruptions usually commence with phreatomagmatic eruptions which can be extremely noisy due the rising magma heating water in the ground. This is usually followed by the explosive throat clearing of the vent and the eruption column is… … Wikipedia
Criticism of recycling — The following are criticisms of many popular points used for recycling.aves energyThere is controversy on just how much energy is saved through recycling. The EIA states on its website that a paper mill uses 40 percent less energy to make paper… … Wikipedia
Nanofluidic circuitry — is a nanotechnology aiming for control of fluids in nanometer scale. Due to the effect of an electrical double layer within the fluid channel, the behavior of nanofluid is observed to be significantly different compared with its microfluidic… … Wikipedia
Recycling — For other uses, see Recycling (disambiguation). 3R Concepts Waste Disposal Hierarchy Reduce Reuse Recycle Barter Dematerialization Dow … Wikipedia
amphibole — [am′fə bōl΄] n. [Fr < LL amphibolus, ambiguous < Gr amphibolos < amphiballein, to throw around, doubt < amphi , AMPHI + ballein, to throw: see BALL2] any of a group of rock forming minerals, as hornblende or actinolite, composed… … English World dictionary
Spherulite — Spherulites, in petrology, are small, rounded bodies that commonly occur in vitreous igneous rocks. They are often visible in specimens of obsidian, pitchstone and rhyolite as globules about the size of millet seed or rice grain, with a duller… … Wikipedia