本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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If you are not a Physics person, read on and learn a fact of physics. # Q+ U4 @+ k' P# W% V) u
AMAZING!
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9 m7 d) K3 i: K, V2 Ptvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!
+ J% h" |. O1 G1 j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。/ Y9 X2 u/ B w, ^ U
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
& i% h+ G3 {0 Z4 sTVBNOW 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.
& j7 a/ {' r" B- Xtvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin." x9 W3 S- t; B
2 u6 |/ x6 ?0 Z: v% C( A7 E& I5 h0 OTVBNOW 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 photo was taken on the day of inauguration.
, u/ M" a* v& XTVBNOW 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.3 o( g F$ W9 P; p: l
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Question:
" |0 t O: Z2 @ \- W( @% c$ kTVBNOW 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。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 ~1 M- f: r) R* |
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
, B8 X* R T' I# G3 e/ K* Ytvb now,tvbnow,bttvbOr just the weight of the water?
6 ~6 V5 t- C6 r Z" j$ F& RTVBNOW 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。公仔箱論壇# T9 Q( A: O1 M7 I4 R2 c z0 P
Answer:
5 ~ Q2 H+ {) V- l- 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。
0 X! z2 ~ @4 p% X" dIt only needs to be designed to withstand the weight of the water! 8 e. G- A- P7 ~1 W* r" V1 e
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded6 V5 c- O. F+ h S5 h/ u3 L: N
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The Incredible Magdeburg Water Bridge in Germany! j. N1 \/ v! ?6 s) d
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.os.tvboxnow.com5 C z" a' S2 e1 V5 Y0 d' 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. 公仔箱論壇9 s) K2 K* P4 H- G
: U/ T0 V, M8 c5 h/ itvb now,tvbnow,bttvbConstruction 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. 4 g( p n8 X1 |2 ^7 {
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。7 @" k* B% T9 ^2 I! ?
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# R8 Z! ^8 ]& Z7 LTVBNOW 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。os.tvboxnow.com' v3 y+ o" z4 P' q% T* T, V
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tvb now,tvbnow,bttvb# K# r! f1 |) S" d; q( ]$ I
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