本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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& c* ~& V; z S/ B2 D4 D8 @2 nIf you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb) I6 L) a; K, I% [ @# W
AMAZING!
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Even after you see it, it is still hard to believe!& \) Z& s7 V$ Q& }% O# V0 s
8 s, _- J* \4 S3 C+ jTVBNOW 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。
' T& p5 k: r$ gtvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! " L! v) b& U+ p/ d+ d x- ?0 R
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
# l! _3 S8 s+ W+ f( `1 l) cIt is located in the city of Magdeburg, near Berlin.
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8 S# @% a* [' p* R# D* T5 `9 oThe photo was taken on the day of inauguration.
9 z' J5 Q7 u8 Q/ D$ O' j4 ZTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.8 B- ]0 p% T+ I" D& f3 V* E
) N) L: a& ~* ^( D/ r) P4 j$ k7 Utvb now,tvbnow,bttvbQuestion:tvb now,tvbnow,bttvb2 V. @6 d7 `) E# W9 L
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
5 `- s4 G, {+ t$ U% c8 W公仔箱論壇Or just the weight of the water? 公仔箱論壇2 E6 S; n; t* b' d# l4 p% i
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Answer:
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It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb( o9 x. Z" E! w/ j: W3 a
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- }, B: h |' c* x$ @8 Q7 L7 u/ ~
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( r7 L" D" X( a" p' SThe Incredible Magdeburg Water Bridge in Germany5.39.217.76 O$ x# F4 Y2 T, S: U" r7 ^
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.
. N# x7 _& }4 c; A1 T, e4 ?4 Y X) V公仔箱論壇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. 2 g' H2 c, s+ a0 T
2 V/ I3 `9 y$ v% Z* y/ |) w3 B. f/ Z EConstruction 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. 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。$ M9 s5 F0 e6 J8 N
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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。, e, q) o! t/ z! j. E* A8 |& 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。1 j1 l4 d- v" x/ Y% G/ s
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