inside curvature of an arch
21Tonometry — In music, a tonometer is an instrument used to determine the pitch or vibration rate of tones, such as a tuning fork. Tonometry is the measurement of tension or pressure [http://www.mercksource.org/pp/us/cns/cns hl… …
22turn — I (New American Roget s College Thesaurus) n. rotation, revolution; twirl, twist; deflection, diversion; coil, convulsion; change; crisis; aptitude, ability, skill; act, skit; spell, shift, tour, trick. v. revolve, rotate, pivot; reel; rebel,… …
23Wright brothers — Orville Wright Photo: 1903 Born August 19 …
24Dome — For other uses, see Dome (disambiguation). Domal redirects here. For domal consonants , see Retroflex consonant. Dome of St. Peter s Basilica in Rome crowned by a cupola. Designed primarily by Michelangelo, the dome was not completed until 1590 A …
25English Gothic architecture — Westminster Hall and its hammerbeam roof, pictured in the early 19th century. English Gothic is the name of the architectural style that flourished in England from about 1180 until about 1520. Contents …
26Nationality Rooms — Coordinates: 40°26′40″N 79°57′12″W / 40.444426°N 79.953423°W / 40.444426; 79.953423 …
27sculpture — sculptural, adj. sculpturally, adv. /skulp cheuhr/, n., v., sculptured, sculpturing. n. 1. the art of carving, modeling, welding, or otherwise producing figurative or abstract works of art in three dimensions, as in relief, intaglio, or in the… …
28Idukki Dam — Infobox Dam dam name=Idukki Dam caption=Idukki arch dam on the Periyar official name= crosses=Periyar River reservoir= Idukki reservoir locale= Kerala, India maint= Government of Kerala length= height= 169.16 width= began= 30 April 1969 open=… …
29human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… …
30Monolithic dome — Example of a Monolithic dome at the Centro de la Familia de Utah Migrant Head Start Center, Genola, Utah. A monolithic dome (from Greek mono and lithic, meaning one stone ) is a structure cast in a one piece form. The form may be permanent or… …
