本帖最後由 serrurier 於 2013-12-19 07:24 AM 編輯
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Scotland Canals
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1 Y2 q+ d7 |5 S公仔箱論壇At the beginning there were two canals:$ p2 _8 B0 A6 t. e9 Y$ b/ h" p* K
Canal Forth and Clyde was built in 1777, between harbors Grangemouth and Falkirk connecting Glasgow with west cost of Scotland.公仔箱論壇6 n) C: `# @* x X3 @
Canal 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.8 a6 B& X% b) {! h
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4 E, C2 K% ]8 T+ _) K1 l. [tvb now,tvbnow,bttvbIn 1963,after 150 yrs of existence of this water way with 11 locks the construction of a huge water carousel started.tvb now,tvbnow,bttvb* _6 ?+ v& K- S- \/ j- O
This extraordinary idea was finished in 2002 and became a symbol of Scotland.This invention saves not only time but also energy.
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This 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.公仔箱論壇7 T4 W; e- C: n1 _& f" a
Boats enter the tub, then the tub locks up and the huge arm starts rotating .
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6 d* p9 Y& }9 Q0 v' o5.39.217.77:8898lower canal
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( a8 x4 Y6 q5 p( h# pEntrance to lower canal7 ]' a: h3 a- i8 O: M8 E5 V
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A Boat is approaching the “tub”
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There are boats in both “tubs” upper and lower) n% S& r/ o0 M- M+ w
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Rotation is starting
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Boats in both rotating arms
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Rotation
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8 I) d; e1 v, X( l/ j* y公仔箱論壇+ P. z+ ~9 d) s
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Closing the gate, regulation of level of water and“tubs” rotation Takes 15 min. only.
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- r1 u& b; P& u4 y( x5.39.217.77:8898One“tub” 78 ft. long with water and boat weights about 300 tons. 公仔箱論壇# _; M5 ^7 s [% \8 J
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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公仔箱論壇9 q% L# e: C0 Y4 T" Z0 |) V
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發表於 2013-12-19 07:01 AM
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發表於 2013-12-21 09:09 PM
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