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Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not differ significantly at high tide and low tide, and around which a tidal crest circulates once per tidal period (approximately every 12 hours). The tidal amplitude increases, though not uniformly, with distance ...
A roving bridge, [1] changeline bridge, [2] turnover bridge, [3] or snake bridge [4] is a bridge over a canal constructed to allow a horse towing a boat to cross the canal when the towpath changes sides. This often involved unhitching the tow line, but on some canals they were constructed so that there was no need to do this by placing the two ...
The current row of timber framed shops on the west side of the bridge dates from about 1550. "Old" London Bridge: Thames river, London 1209–1831 The number of houses on the bridge reached a maximum of 140. Many of the houses were later merged, into 91.
Table bridge – a lift bridge with the lifting mechanism mounted underneath it; Retractable bridge (Thrust bridge) – the bridge deck is retracted to one side; Submersible bridge – also called a ducking bridge, the bridge deck is lowered into the water; Tilt bridge – the bridge deck, which is curved and pivoted at each end, is lifted at ...
4. : The left side of a ship or vessel when facing forward (formerly larboard). Denoted with a red light at night. [2] 5. Toward the left-hand side of the ship when facing forward (formerly "to larboard "). 6. : A sweep rower who rows with one oar on one side of a boat and primarily on the port (left) side of the boat.
Animation showing the operation of a drawbridge. A drawbridge or draw-bridge is a type of moveable bridge typically at the entrance to a castle or tower surrounded by a moat.In some forms of English, including American English, the word drawbridge commonly refers to all types of moveable bridges, such as bascule bridges, vertical-lift bridges and swing bridges, but this article concerns the ...
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An entrance door for excluding drafts from an interior of a building. A revolving door typically consists of three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure. Rib vault The intersection of two or three barrel vaults. Ridge board