本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
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2 Y ]$ e7 Q/ `8 z* g2 a公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 4 p% k$ |2 C3 S% p/ [4 X( H
AMAZING!
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Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb& N+ C, c/ W) ~+ m. y. |4 z9 a
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6 r9 c2 q% @$ m/ oMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇8 ^9 E5 m- V g, {; ~5 n8 P3 u0 _
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.769 M) N" x, g+ x L6 @. P1 }' M% P; M# R
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。7 G- @8 l- v" B1 _5 B' A" v
1 Z6 \% F. G9 T2 \. h7 \5 A1 Xtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.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。* n' n f' A2 j8 j6 h; A" }" B
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇- y& K: R$ F6 F1 ?
6 Q& l5 ^2 _! f ^8 C/ U3 e/ Q& SQuestion:
# R% O% K$ v3 i5 l) iTVBNOW 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 X+ E1 n; f% ^2 \+ O6 nDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
" G. {; |' [. z, HOr just the weight of the water? tvb now,tvbnow,bttvb; W; r8 x# i9 T- z7 q: H! \( {
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Answer:
3 }7 v6 M+ ?$ ]- Ntvb now,tvbnow,bttvbtvb now,tvbnow,bttvb0 X6 W8 E) ?6 {9 h# k
It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb$ }# K+ w+ _6 }& F" e- L
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb7 r' N- j8 a& K* Z! d- l
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The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。+ D# t- w7 K7 b8 j; v7 x1 ?
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.
# R; B, w& j) s3 u4 s! d4 rtvb now,tvbnow,bttvbThe 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. ! Y" I2 k% d/ m: k3 b
4 ]/ I7 L! @3 {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。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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4 o! X5 ]# A. M, V& W3 y4 wTVBNOW 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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9 c3 d F- a% p7 Z r5 E# bTVBNOW 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" Y' J6 O) {' j6 V
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 N9 b# I4 i- S4 u: V- m" }
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