本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
l+ d2 c' Y* Y: pTVBNOW 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。. O$ W7 U) l y: C# K/ m3 N% S) Z
If you are not a Physics person, read on and learn a fact of physics. TVBNOW 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。( E7 @2 F& j/ A1 y( J$ n, y7 F1 t
AMAZING!
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Even after you see it, it is still hard to believe!
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1 [0 t1 g# q/ x; {& m6 hMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
8 D3 o2 D7 ?# l3 q X9 u X公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.762 \) t: S* E) z8 O4 u
It is located in the city of Magdeburg, near Berlin.公仔箱論壇; l% o" P2 s+ f7 Q8 L2 ]
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The photo was taken on the day of inauguration.
; @$ }; b/ g. B+ w' w; ~5 \公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇1 `9 C/ ]" B* V. k% p% s
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Question:TVBNOW 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。& q% {( }+ g$ `! R! E, Y
, r) b% A/ B3 T( U" ^5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
0 t$ c _. k; h8 o$ {Or just the weight of the water?
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Answer:tvb now,tvbnow,bttvb# |9 N' q# j. o3 m/ k
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It only needs to be designed to withstand the weight of the water! 公仔箱論壇/ H4 p- P2 U4 E3 A7 m# J
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
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# | t9 t6 X) Q, M, J/ |tvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany公仔箱論壇: N& X9 }, k; w5 ?4 Z/ Z
The Magdeburg Water Bridge is a navigable aqueduct in Germany that connects the Elbe-Havel Canal to the Mittelland Canal and allows ships to cross over the Elbe River. At 918 meters, it is the longest navigable aqueduct in the world.7 t% q8 `4 U6 L, y6 L
The Elbe-Havel and Mittelland canals had previously met near Magdeburg but on opposite sides of the Elbe Ships moving between the two had to make a 12-kilometer detour, descending from the Mittelland Canal through the Rothensee boat lift into the Elbe, then sailing downstream on the river, before entering the Elbe-Havel Canal through Niegripp lock. Low water levels in the Elbe often prevented fully laden canal barges from making this crossing, requiring time-consuming off-loading of cargo.
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2 |. E8 z! s. ~( Q6 b公仔箱論壇Construction of the water link was started as early as in the 1930s but due to the World War 2 and subsequent division of Germany the work remained suspended till 1997. The aqueduct was finally completed and opened to the public in 2003.
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( J+ I0 k. I5 x; B( {1 PTVBNOW 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。
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0 Q* B6 {3 a! a+ z0 T/ D公仔箱論壇TVBNOW 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。9 ~4 v& D! c5 c$ m6 j
TVBNOW 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。% L0 Z% O/ w. m! Y6 o3 e) a6 o
$ a- L5 P6 j& @9 F7 G9 p. ]TVBNOW 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。
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