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1:18 scale is a traditional scale (ratio) for models and miniatures, in which 18 units (such as inches or centimeters) on the original is represented by one unit on the model. Depending on application, the scale is also called two third inch scale since 1 foot is represented by 2/3 of an inch.
Sphalerite is an important ore of zinc; around 95% of all primary zinc is extracted from sphalerite ore. [42] However, due to its variable trace element content, sphalerite is also an important source of several other metals such as cadmium, [ 43 ] gallium, [ 44 ] germanium, [ 45 ] and indium [ 46 ] which replace zinc.
Timur, [b] also known as Tamerlane [c] (1320s – 17–18 February 1405), was a Turco-Mongol conqueror who founded the Timurid Empire in and around modern-day Afghanistan, Iran, and Central Asia, becoming the first ruler of the Timurid dynasty. An undefeated commander, he is widely regarded as one of the greatest military leaders and tacticians ...
[25] [7] Technical quality HCl at typically 18% concentration is the most commonly used pickling agent for the pickling of carbon steel grades. Fe 3 O 4 + Fe + 8 HCl → 4 FeCl 2 + 4 H 2 O The spent acid has long been reused as iron(II) chloride (also known as ferrous chloride) solutions, but high heavy-metal levels in the pickling liquor have ...
0.1 Dec, 1992 Browse plaintext and HTML documents, Gopher servers, anonymous FTP servers, and local files; HTTP/0.9 0.2 Fixed fatal bug in 0.1 0.3 Support for NCSA's DTM (broadcasts documents to real-time networked workgroup collaboration sessions) 0.4 0.5 Jan 23, 1993 Initial public release (as NCSA X Mosaic). Save/mail/print; History list; On ...