本帖最後由 serrurier 於 2013-12-19 07:24 AM 編輯 3 J; L( Q3 J4 u: |
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Scotland Canals
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+ j, ?- L. S+ Q$ W+ v; X8 J3 lAt the beginning there were two canals:tvb now,tvbnow,bttvb: @8 Z2 r$ J4 `( z5 {- w1 A
Canal Forth and Clyde was built in 1777, between harbors Grangemouth and Falkirk connecting Glasgow with west cost of Scotland.
& r( `4 c: @( y o( ptvb now,tvbnow,bttvbCanal Union between Falkirk and Edinburgh was finished in 1822. Because of geographical difficulties, which created a difference of 79 ft. in elevation, the two canals were connected by 11 locks.
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In 1963,after 150 yrs of existence of this water way with 11 locks the construction of a huge water carousel started.+ ]8 R- A c, N& N4 {
This extraordinary idea was finished in 2002 and became a symbol of Scotland.This invention saves not only time but also energy. 5.39.217.762 w+ `7 O- c J6 u, J
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7 e2 k* x6 \4 d7 c- AThis is the only rotational boat transporter in the world. It has two arms and each arm forms a kind of huge tub filled with water.- ]: Y3 E& a! j! z3 U5 E0 u
Boats enter the tub, then the tub locks up and the huge arm starts rotating .3 Z1 R/ _" x% R& z( v" Q. v! @0 y
) F: D9 C0 t, q4 s, T% i( a5.39.217.76lower canal
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Entrance to lower canaltvb now,tvbnow,bttvb# ^2 h" o5 z4 J- A
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A Boat is approaching the “tub”
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There are boats in both “tubs” upper and lower2 `6 i$ I( \7 f
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Rotation is starting5.39.217.76$ w! d" I7 E! T; N
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Boats in both rotating arms
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" u7 D( z3 C( ~5 }& m% b. ^) Stvb now,tvbnow,bttvbJust before “landing”tvb now,tvbnow,bttvb d% S8 C, J$ x. K
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6 H% r# j- S: S$ u1 [7 s$ J; tClosing the gate, regulation of level of water and“tubs” rotation Takes 15 min. only.* v2 q: \3 o) `; h% n
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One“tub” 78 ft. long with water and boat weights about 300 tons.
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! g: _3 y, ?% y4 `5 UTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。The“tubs” are filled according the Archimedes’ Law. So the weight of “tubs” are balanced. To open the upper and lower lock and turn the whole system by 180◦they need an engine of 22.5 kW which only use 1.5 kWh
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