(February 2014) Allusion is a figure of speech, in which one refers covertly or indirectly to an object or circumstance from an external context. It is left to the audience to make the connection; where the connection is directly and explicitly stated (as opposed to indirectly implied) by the author, it is instead usually termed a reference.
Titanium metal connects well with bone, so it has found surgical applications such as in joint replacements (especially hip joints) and tooth implants. The largest use of titanium is in the form of titanium(IV) oxide. It is extensively used as a pigment in house paint, artistsâ paint, plastics, enamels and paper.
Many elements such as iron, aluminium, nickel and vanadium are alloyed with titanium to produce strong lightweight alloys. These titanium alloys are used in the manufacturing of naval ships, spacecraft, missiles and aircraft, with around two thirds of all titanium metal produced is used in aircraft engines and frames.he chemical element Titanium has the symbol Ti and atomic number 22. Pure titanium is a transition metal with a lustrous silver-white color. Titanium will always be found bonded with another element it does not naturally occur on its own in a pure form. British pastor William Gregor discovered titanium in 1791.