Fill+by+compression
41Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …
42Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …
43Mercury (planet) — Mercury  ☿ …
44Laserdisc — Not to be confused with disk laser, a flat configuration solid state laser. Not to be confused with VCD, DVD, or Blu ray, optical disc formats employing digital video encoding. Not to be confused with CED, a coincident but incompatible analogue… …
45Aspect ratio (image) — For other uses, see Aspect ratio (disambiguation). For computer screen topics, see display aspect ratio. For screen rotation and portrait mode, see page orientation. 4:3 redirects here. For the 4/3 digital camera/lens standard, see Four Thirds… …
46Dense plasma focus — Plasma gun redirects here. For the science fiction weapon, see plasma weapon (fiction). A dense plasma focus (DPF) is a machine that produces, by electromagnetic acceleration and compression, a short lived plasma that is so hot and dense that it… …
47Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …
48Portable Document Format — PDF redirects here. For other uses, see PDF (disambiguation). Portable Document Format Adobe Reader icon Filename extension .pdf Internet media type application/pdf application/x pdf application/x bzpdf application/x gzpdf …
49Nu-Wood Decorative Millwork — is millwork made of a specially formulated polyurethane polymer. The standard density is similar to white pine. It can be cut, sawn, shaped, routed, nailed, stapled, and screwed just like wood. Profiles exist for a variety of uses, indoors and… …
50ZFS — Infobox Filesystem full name = ZFS name = ZFS developer = Sun Microsystems introduction os = OpenSolaris introduction date = November 2005 partition id = directory struct = Extensible hash table file struct = bad blocks struct = max filename size …
