plating medium
101Sapphire — For other uses, see Sapphire (disambiguation). Sapphire The 423 carat (85 g) blue Logan sapphire General Category Oxide mineral …
102Engraving — A copperplate engraver at work Engraving is the practice of incising a design on to a hard, usually flat surface, by cutting grooves into it. The result may be a decorated object in itself, as when silver, gold, steel, or glass are engraved, or… …
103Ranger 1 — Infobox Spacecraft Name = Ranger 1 Organization = NASA Major Contractors = Jet Propulsion Laboratory Mission Type = Lunar Science Satellite Of = Earth Launch = August 23, 1961 at 19:12 UTC Launch Vehicle = Atlas Agena B Decay = August 30, 1961… …
104Ranger 2 — was a flight test of the Ranger spacecraft system of the NASA Ranger program designed for future lunar and interplanetary missions. Ranger 2 was designed to test various systems for future exploration and to conduct scientific observations of… …
105Ballistic 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… …
106Mycoplasma — Not to be confused with Mycobacteria. Mycoplasma Scientific classification Kingdom: Bacteria Phylum: Tenericutes  or Firmicutes Class …
107Gold (color) — Gold tone redirects here. For the type of photographic print, see Gold tone (print). Gold (golden) Color coordinates Hex triplet #FFD700 …
108Chromic acid — IUPAC name Chromic acid …
109Case hardening — or surface hardening is the process of hardening the surface of a metal, often a low carbon steel, by infusing elements into the material s surface, forming a thin layer of a harder alloy. Case hardening is usually done after the part in question …
110Strings (music) — A string is the vibrating element that is the source of vibration in string instruments, such as the guitar, harp, piano, and members of the violin family. They are lengths of a flexible material kept under tension so that they may freely vibrate …
