Circular+plate
41Nebra sky disk — The Nebra Sky Disk. The Nebra Sky Disk is a bronze disk of around 30 cm diameter, with a blue green patina and inlaid with gold symbols. These are interpreted generally as a sun or full moon, a lunar crescent, and stars (including a cluster… …
42Components of medieval armour — Following is a table that concisely identifies various pieces of medieval armour, mostly plate but some mail, arranged by the part of body that is protected and roughly by date. No attempt has been made to identify fastening components or various …
43Bending — For other uses, see Bending (disambiguation). Flexure redirects here. For joints that bend, see living hinge. For bearings that operate by bending, see flexure bearing. Continuum mechanics …
44Butterfly valve — A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate… …
45York Minster astronomical clock — The York Minster astronomical clock was installed in the North Transept of York Minster in 1955. It was first conceived in 1944 and designed by R d E Atkinson, chief assistant at the Royal Greenwich Observatory. The clock is a memorial to the… …
46Dividing engine — at the Michigan Museum of Surveying A dividing engine is a device specifically employed to mark graduations on measuring instruments. History There has always been a need for accurate measuring instruments. Whether it is a linear device such as a …
47SR Merchant Navy class — SR Merchant Navy class[1] Official Southern Railway photograph of 21C1 Channe …
48SR Merchant Navy Class — Infobox Locomotive powertype=Steam name = SR Merchant Navy ClassHarvey] caption = Official Southern Railway photograph of 21C1 Channel Packet as built, 1941. designer = Oliver Bulleid builder = SR Eastleigh Works builddate = 1941 ndash;1949… …
49Eddy current — This article is about the electrical phenomenon. For the Ted McKeever comic, see Eddy Current (comics). Electromagnetism …
50Gaia (Final Fantasy VII) — Final Fantasy worlds Gaia  (Final Fantasy VII) Spira  (Final Fantasy X) Ivalice  (Final Fantasy XII) Gaia (also called the Planet ) is the fictional world in the 1997 console role playing game Final Fantasy VII.[1] The game s… …
