EVER SEEN A RIVER OVER A RIVER?
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. 公仔箱論壇/ I+ k3 i% K6 \5 W
AMAZING!
1 Q6 d3 k/ o* k7 cTVBNOW 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 \0 O- ?3 ]9 x1 ^. _公仔箱論壇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! tvb now,tvbnow,bttvb$ I3 [+ H% I; a+ W$ l3 [
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
. r+ y7 [6 |6 K2 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。It is located in the city of Magdeburg, near Berlin.公仔箱論壇# j, w7 p. R [5 B* b6 E/ F
8 z8 ?' v3 r+ s# R5 ]% @8 T# j1 DThe photo was taken on the day of inauguration.公仔箱論壇9 Y4 \6 V- G% U1 U# [
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。8 w( X$ y! A* {; \: {
) K7 k8 A# _0 \3 QTVBNOW 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:
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- j" z& `5 m8 Y WDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,5.39.217.76( a7 I$ Y; j, L/ Y3 c* r
Or just the weight of the water? 5.39.217.765 K. z$ ^+ ~! K$ h& J1 k% z, _
6 Z8 _: H- b9 q5 f1 G4 g公仔箱論壇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。$ g' Q8 i: K& P6 q
* |. `& x5 M. ^- ~! E8 F公仔箱論壇It only needs to be designed to withstand the weight of the water! 4 E k3 ]7 D) }5 M V1 Y* k+ H
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- O; V4 ]! E" M+ @
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The Incredible Magdeburg Water Bridge in Germany
6 y) c8 V. ~# B% L3 i9 KThe 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 o9 ^4 b5 D9 E. `$ }/ ~: |( A
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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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. 5.39.217.76# o9 u: k8 ~! r( z
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! T) E7 R9 J/ V' f+ Y公仔箱論壇4 M# \1 B/ L1 K! \" F6 ?9 X* ?& r
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 V4 U$ a, N$ F) w
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