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. 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。% j% I+ L1 A% [: P4 ]- X
AMAZING!
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Even after you see it, it is still hard to believe!
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. z& N$ h+ ?$ l4 J0 ?) q. x! QMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
5 i5 ^ r' [3 K E5 f公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。( T! C+ O, [, M J) f
It is located in the city of Magdeburg, near Berlin.5.39.217.762 L6 h: b1 E. Q: R" l& W5 o
. S! J! d7 f4 r7 Q4 M/ ttvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.5.39.217.76# `! g$ _( ~2 L, G( d
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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1 i$ Y$ h0 c" ?3 W* h$ LQuestion:公仔箱論壇' b3 `) _) L+ P" ~
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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。" r5 q" n- z/ H) u$ v
Or just the weight of the water? " y. s' A$ }9 y# a# n# l) r+ p
$ m* I: k! J7 z( w5.39.217.76Answer:% W8 T3 H1 I* {6 l& e
# n% X9 j, J2 L3 ^* E/ a; K/ RIt only needs to be designed to withstand the weight of the water! 5 Z& } v1 A+ O, f; N7 J3 g; 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 loaded
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公仔箱論壇3 }- p, w# I. U- _) D2 H# `
The Incredible Magdeburg Water Bridge in Germany
5 D5 U& f0 s0 `tvb now,tvbnow,bttvbThe 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.( {( L4 O, k' D! r0 Z
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. 0 g1 o. I) J. I% Z; w# _
+ p' ]+ d8 g) ? [/ U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.
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. o, C! K: o7 \$ 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。
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