本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇& r/ G# n4 N. {
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。3 b/ r7 W7 ?* t: p' m V& F% a5 j& @
If you are not a Physics person, read on and learn a fact of physics.
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Even after you see it, it is still hard to believe!
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6 E) d. j V! T# Ntvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
1 q$ F: g( [3 z# J5 B( PTVBNOW 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. 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 O- H! m8 H& w+ x. E1 @
It is located in the city of Magdeburg, near Berlin.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 s6 G, ^( B( d' c7 r4 C; R% p
: M. l- O' _' k Itvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.5.39.217.77:8898% T% s \) q9 ~1 Q3 W
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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! F7 ?# q6 Y2 }& f* W( u8 e$ |Question:
7 B, S! ~& K5 z3 u0 yTVBNOW 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。
: ]$ Y1 Z( p3 v/ GDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,* t& k7 h6 [* i
Or just the weight of the water? 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) v$ c2 w) g/ [8 M
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 t) j3 Q [; ]; g3 n9 c( i, Q# h
Answer:- H3 L. h; u2 C9 b' W
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It only needs to be designed to withstand the weight of the water!
4 p* |7 r& b/ C# U3 G/ j$ {tvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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。& V4 e; I; N, p& Z4 s4 X" U0 L+ l2 R6 g
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The Incredible Magdeburg Water Bridge in Germany& n2 U$ a! t# h& p: Y8 ~/ ]& {0 [
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.公仔箱論壇! S f& e: Q3 g" B! ~
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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, I) q3 B$ |8 M3 a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. 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 r* n/ r) }6 \$ i4 E6 ]+ |( H8 X
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。 x+ g+ C; k f Z1 u) ~) G( X
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- a8 e& b; n) {# v7 E, n. e% E5.39.217.77:88987 K: ]8 u. L# r1 }$ v7 T$ v k1 c# y
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。. C$ _; E4 p5 S
; @( r4 m: N# o; GTVBNOW 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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發表於 2011-10-4 11:33 AM
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發表於 2011-10-15 09:35 PM
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