main bracing system
41airplane — /air playn /, n. 1. a heavier than air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. 2. any similar heavier than air aircraft, as a glider or helicopter. Also …
42Sea kayak — A sea kayak on Valdes Island, British Columbia, Canada. A sea kayak or touring kayak is a kayak developed for the sport of paddling on open waters of lakes, bays, and the ocean. Sea kayaks are seaworthy small boats with a covered deck and the… …
43Cai Li Fo — Choy Li Fut redirects here. For the Hong Kong film, see Choy Lee Fut (film). Cai Li Fo Chinese 蔡李佛 Transcriptions …
44Creationism — can also refer to creation myths, or to a concept about the origin of the soul. For the movement in Spanish literature, see Creacionismo. Part of a series on Creationism …
45Maritime history of California — History of California This article is part of a series Timeline …
46T. V. S. R. Appa Rao — T.V.S.R. Appa Rao is a scientist from India. He is an Emeritus Scientist with over 40 years of experience in Research Development in the areas of structural analysis design, testing, and failure investigations including those due to natural… …
47Arab Spring — الربيع العربي …
48Eastern span replacement of the San Francisco — San Francisco – Oakland Bay Bridge (eastern span replacement) Artistic rendition of the new eastern span of the Bay Bridge seen from Treasure Island (ca. 2014) Official name To be determ …
49Cable-stayed bridge — BridgeTypePix image title=The Rio Antirio bridge in Greece type name=Cable stayed bridge sibling names=None descendent names=Side spar cable stayed bridge, Self anchored suspension bridge, cantilever spar cable stayed bridge ancestor… …
50stringed instrument — a musical instrument having strings as the medium of sound production, played with the fingers or with a plectrum or a bow: The guitar, the harp, and the violin are stringed instruments. * * * Any musical instrument that produces sound by the… …
