water-fed drill
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 …
42Megadeus — The Big three megadeuses of the series. Left to right: Big Fau, Big Duo and Big O. Megadeus (メガデウス, Megadeusu …
43Pingu episodes series 4 — This is an list of episodes with synopses for series 4 of the stop motion animated television series Pingu . =Series 1 (1986 1991)= =Series 2 (1991 1994)= =Series 3 (1994 1996)= =Series 4 (1998)= Pingu s DisadvantagePingu is out on his sledge. He …
44Jikuu Senshi Spielban — Jikku Senshi Spielban Format Metal Hero Tokusatsu Created by Toei Starring Hiroshi Watari Makoto Sumikawa Naomi Morinaga Shōzō Iizuka Narrated by …
45agriculture, origins of — Introduction the active production of useful plants or animals in ecosystems that have been created by people. Agriculture has often been conceptualized narrowly, in terms of specific combinations of activities and organisms wet rice production… …
46Bury — infobox UK place country = England latitude = 53.593 longitude = 2.298 official name = Bury metropolitan county = Greater Manchester population = 60,718 metropolitan borough = Bury region = North West England constituency westminster = Bury North …
47Technological and industrial history of Canada — The technological and industrial history of Canada encompasses the country s development in the areas of transportation, communication, energy, materials, public works, public services (health care), domestic/consumer and defense technologies.… …
48Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …
49Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
50Crank (mechanism) — A crank is an arm attached at right angles to a rotating shaft by which reciprocating motion is imparted to or received from the shaft. It is used to change circular into reciprocating motion, or reciprocating into circular motion. The arm may be …
