本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。/ |! C* t d/ Y2 @ N+ ?
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。6 F: S9 M1 J( Y
If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb* x9 y0 p6 t% c
AMAZING! tvb now,tvbnow,bttvb8 _0 n- h2 B+ M% J/ N5 C4 B: l
3 q: }4 g! o& Q5 N) |Even after you see it, it is still hard to believe!9 s8 H* t6 ~+ f/ V5 {' z- R
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v5 R' n% Y8 c1 W5.39.217.76Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
% N7 u% m- _9 ]/ ?; o& m5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 1 B. P1 D. ]; g- I$ u
It is located in the city of Magdeburg, near Berlin.: B$ U2 m" b$ F4 p; S7 |
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The photo was taken on the day of inauguration.
, g J* Z5 i! h4 D3 d, [) g) zTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.1 d" s0 U; {8 }( V- T
1 @, i% n) h* F5 v ETVBNOW 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。Question:
: B1 H, y6 i; i, K公仔箱論壇5.39.217.768 b0 a* y" Z5 o. s7 ^2 s& Q
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。$ K0 m' c0 _ U4 w4 s+ O
Or just the weight of the water? , s. ^9 A8 Z# U1 M% O8 f' Y- _
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Answer:
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. `' S2 c6 O. ~8 `6 w9 ZIt only needs to be designed to withstand the weight of the water! $ L4 R( s |6 F0 v7 G
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公仔箱論壇; M/ q% L7 c, Z% u' T
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。: u- u. D3 f, o! \& c8 l5 u7 C% K
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The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb% ?9 \) d5 ^& A
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.
0 A, u" Y% }1 E5 _6 s1 m4 @- N3 @tvb now,tvbnow,bttvbThe 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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" e+ u$ U$ n9 c5 {, _6 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.
3 b/ k' r( V1 A8 J3 V5.39.217.765.39.217.76) l" x! b5 d- J' V8 z) s6 _$ |# ?
5.39.217.76 M1 C8 A$ y& i" q( A" G
5.39.217.76 Q, A' f3 y( ~1 @; U. M6 _
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" U6 r7 C7 d: Q- }$ s' Q) d/ }4 O公仔箱論壇1 V' y; s* O- P9 K4 d# E
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