arch with keystone
1Arch — • A structure composed of separate pieces, such as stone or bricks, having the shape of truncated wedges, arranged on a curved line so as to retain their position by mutual pressure Catholic Encyclopedia. Kevin Knight. 2006. Arch Arch …
2Keystone (architecture) — A keystone is the architectural piece at the crown of a vault or arch and marks its apex, locking the other pieces into position.cite book last =Ching first =Francis D.K. authorlink = coauthors = title =A Visual Dictionary of Architecture… …
3Arch bridge — This article is about the structure type. For the bridge in Bellows Falls, Vermont, see Arch Bridge (Bellows Falls). Arch Bridge Double arch stone bridge, Japan Ancestor Clapper bridge Related …
4Arch — For other uses, see Arch (disambiguation). A masonry arch 1. Keystone 2. Voussoir 3. Extrados 4. Impost 5. Intrados 6. Rise 7. Clear span 8. Abutment An arch is a structure that spans a space while… …
5Keystone Aircraft — Corporation was an early pioneer in airplane manufacturing. Headquartered in Bristol, Pennsylvania, it was formed as Ogdensburg Aeroway Corp in 1920 by Thomas Huff and Elliot Daland, but its name was quickly changed to Huff Daland Aero Corp, then …
6Keystone — Key stone , n. (Arch.) The central or topmost stone of an arch. This in some styles is made different in size from the other voussoirs, or projects, or is decorated with carving. See Illust. of {Arch}. [1913 Webster] …
7ARCH — The arch was invented around 2500 BC in the Indus Valley of ancient India. It is a curved structure that rests on posts or walls and allows for the spanning of an architectural space. Prior to the use of the arch, the post and lintel structure …
8arch — arch1 /ahrch/, n. 1. Archit. a. a curved masonry construction for spanning an opening, consisting of a number of wedgelike stones, bricks, or the like, set with the narrower side toward the opening in such a way that forces on the arch are… …
9Keystone species — A keystone species is a species that has a disproportionate effect on its environment relative to its abundancecite journal author=Paine, R.T. year=1995 title=A Conversation on Refining the Concept of Keystone Species journal=Conservation Biology …
10Arch Creek — Infobox nrhp name = Arch Creek Historic and Archeological Site caption = Arch Creek natural limestone bridge was the site of early settlement in Miami Dade county location = Miami Dade County, Florida, USA nearest city = North Miami, Florida lat… …
