本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 6 y. q* U8 v+ U
* \ R8 d* V" M; N, l# `tvboxnow.comIf you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇, A) P9 I$ c5 O5 G! `4 N0 o) c
AMAZING!
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: ]' z9 ]2 X5 @3 E% r ptvboxnow.comEven after you see it, it is still hard to believe!% g- \4 [3 D/ Q: j+ w5 _; m
2 t5 {, g; S7 R, c% Z2 P公仔箱論壇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。) l( `( a& c. J8 \2 b. O0 h
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 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。2 a7 @) o! F) T7 b
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
& c h( p) h4 h( ~8 vIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb2 S+ g0 p* e; Y* O2 W0 [8 g
$ h0 u- `- Y9 r7 Z0 |tvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
; v, f: Z, {7 e% F! r( N公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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4 G0 J+ D& T( L2 s% A: c* |+ O7 KQuestion:
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- F+ F4 ?+ I4 L" l3 l1 k公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,: X5 [# L9 I, x& S) P
Or just the weight of the water? # p8 N7 }3 m6 D3 }+ U
2 s0 E) A( w9 E" D0 i9 }公仔箱論壇Answer:0 z! H0 A3 d: o/ x* u
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It only needs to be designed to withstand 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。4 C# N6 g" ^, t8 g
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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# c* j& P$ c( i' f2 Mtvboxnow.comThe Incredible Magdeburg Water Bridge in Germanytvboxnow.com$ a! E/ O( M* p# g- t
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.
5 y( M4 S ]5 q5 BThe 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. tvb now,tvbnow,bttvb# n2 E; b C! S% C0 U
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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. / S( F( I H5 s1 d. b
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" K# h: [0 ?% 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。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。2 r. E0 D" V' [
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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。, d5 x2 E0 |! d; F1 t5 u
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發表於 2011-10-4 11:33 AM
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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。4 [0 {, {+ f7 Y9 W
發表於 2011-10-15 09:35 PM
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