本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
" p$ s% {# B- d6 C+ n% i9 N' B- `: aTVBNOW 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 M/ m! y2 g9 S3 y: bIf you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇4 O) [% g3 r; w5 A- B
AMAZING!
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* Z: m! C: F: r; U; |* a2 ATVBNOW 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。Even after you see it, it is still hard to believe!
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
0 |" U8 A1 X9 Y4 O5 D! [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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
6 O6 o$ ?" |- C" x9 rIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb, e$ o1 a* ^* E+ K
7 l b: i5 B- R( Utvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
( V5 I* s0 i! e' N* c+ Qtvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:
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) u- _* w, j! [www3.tvboxnow.comDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# F. u& P4 k8 ^# e- p& V! Cwww3.tvboxnow.comOr just the weight of the water? www3.tvboxnow.com7 F: u0 }/ F( c& x
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Answer: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。0 @0 D2 ]! z. ]' [. J- v9 k4 G
" c8 q" P3 ^: Z6 E) IIt only needs to be designed to withstand the weight of the water! 0 l" h( L( K' I
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb' ^9 N5 N2 e; ?. @
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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。, w t* Q$ r, }; o& O; m4 f
The Incredible Magdeburg Water Bridge in Germany
8 P: Q; O+ c9 q0 g3 R% e5 d' f/ i' \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.
; _1 a6 b1 l; b* a+ @www3.tvboxnow.comThe 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. 4 p8 R' R( j; x" x" J. {5 O% Z0 @1 \
8 _ u& W3 Q/ X" FTVBNOW 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。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. ; r) B: N* H4 T& d z$ L2 V/ q
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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。& w' v. k, |! }2 }. d7 Y1 V9 d
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