(in prop shaft)
41Daleks — – Invasion Earth: 2150 A.D. UK quad poster Directed by Gordon Flemyng Prod …
42Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany …
43AH-64 Apache — Infobox Aircraft name= AH 64 Apache caption= A US Army AH 64 Apache from 101st Aviation Regiment, in Iraq type= Attack helicopter national origin = United States manufacturer= Hughes Helicopters McDonnell Douglas Boeing Integrated Defense Systems …
44Westland Wessex — infobox Aircraft name = Wessex type = Helicopter manufacturer = Westland caption =A Royal Navy Wessex HU5 at Ascension Island in 1982 designer = first flight = 20 June 1958 introduced = 1961 retired = 2003 (Royal Air Force) status = primary user …
45Aérospatiale Alouette II — Infobox Aircraft name = SA 313 / SA 318 Alouette II caption = An Aérospatiale SA 318 BW Alouette II of the German Army type = Light helicopter manufacturer = Sud Aviation/Aérospatiale designer = first flight = 1955 03 12 introduced = 1957 05 02… …
46XFL Airabonita — infobox Aircraft name = XFL Airabonita caption = type =Fighter manufacturer = Bell Aircraft designer = first flight = 13 May 1940 introduced = retired = status = Cancelled primary user = United States Navy more users = produced = number built =1… …
47Republic XP-72 — infobox Aircraft name =P 72 type =Fighter manufacturer =Republic Aviation Company caption = designer = first flight =2 February 1944 introduced = retired = status =Cancelled primary user = more users = produced = number built =2 unit cost =… …
48Revenge of the Cybermen — 079 – Revenge of the Cybermen Doctor Who serial The Cybermen invade Space Station Nerva Cast …
49List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
50coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …
