2 k: j' A- Y9 ?+ ?6 V5.39.217.77:8898If 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。6 d9 J& X( b5 X! B1 U1 A
AMAZING! 6 o- Z R- B9 N+ |4 d h公仔箱論壇 5 Y' r+ H' k+ v" r! QEven after you see it, it is still hard to believe!$ b1 c0 \- y1 e$ }& c* U7 s [attach]1486499[/attach]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( ~0 S3 @1 S7 S6 Z2 Y2 m" U- |
8 \' V, i( f2 vtvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:88981 Q8 Q7 n# a# g4 ?
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb' y+ g" I2 t( d; L, ~" v& ]
It is located in the city of Magdeburg, near Berlin.% J1 j6 U$ [% O5 g
, Z' j( r H5 Q) M/ U+ `公仔箱論壇The photo was taken on the day of inauguration. + R! d5 r& a1 ]: Z' O$ v' N公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. : r2 c. C x2 A6 k. Z+ Z0 gtvb now,tvbnow,bttvb2 }5 R0 @0 G" j# u9 }8 W6 N
Question:2 G0 K; V8 A1 }3 w& i' `
1 H/ [) _" }0 \" d7 L/ r2 ?5.39.217.77:8898Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 4 q; I. y' K" E5 IOr just the weight of the water? ' p' ?; N, U. @ u . x5 l8 G L6 Q1 A+ F0 g QAnswer: % _3 G+ J5 ?4 u9 J2 \5 N3 fTVBNOW 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。5.39.217.77:8898( U) Z; J+ F) n3 l0 K
It only needs to be designed to withstand the weight of the water! 8 P3 _! R& d8 Q9 L' V5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded 8 }" s& ?6 R% q& t* i* b3 g公仔箱論壇 1 `7 U& Z1 C. h2 @2 t1 j1 J 4 a. J' U% K7 `+ g+ Utvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany " |6 T+ P* w+ f) B2 V. }+ T公仔箱論壇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.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。" Y9 c0 @3 E! u6 u) B C) i6 N
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. " h: K' l* ~& Z$ N- }! ~$ R! q9 {
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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. + d% a' X, l3 v5 s3 F* T" Ltvb now,tvbnow,bttvb5.39.217.77:8898: v3 W2 N3 Y- A
5 Y5 s& A$ u1 U. s3 f* Q5.39.217.77:8898[attach]1486500[/attach]5.39.217.77:88988 A$ y* m2 {8 ^3 M% O [attach]1486501[/attach] 1 M# E) j0 c; M2 R公仔箱論壇[attach]1486502[/attach]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。' v5 u+ l2 t: w; V) u- a [attach]1486503[/attach]5.39.217.77:8898$ [! V4 A8 f3 I1 t' A [attach]1486504[/attach] 4 L. Z' w0 q: P" m/ o. k3 v2 X5.39.217.77:8898[attach]1486505[/attach] % U. o. u. F# R * k' N- \7 a h O! _公仔箱論壇作者: busyfun 時間: 2011-10-4 11:33 AM
這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出 R+ d# W2 }" atvb now,tvbnow,bttvb連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇1 |( P+ k% S6 u& g5 {
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。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 j7 g4 g) |! Q- r a
隨後的冷戰時期，德國分裂，該專案被東德政府無限期地擱置下來。5.39.217.77:8898* p' e$ _1 A4 h3 Z+ K4 {% ]9 `/ H
德國重新統一後，隨著道路交通重大工程規劃的編制，水橋再次成為一個優先專案。tvb now,tvbnow,bttvb2 c+ p1 u A" G
於1997年開始建造，經過 6 年，耗資 5 億歐元，2.4 萬噸鋼材和 6.8 萬 / L/ e# z. h: c立方公尺混凝土，完成了巨大的水橋，連接柏林的內陸港與萊茵河沿岸港口。 0 b7 C. u! |4 l, }
2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和 0 t/ i. \* g8 q9 l/ q8 R: W9 B; N易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。作者: swyip21 時間: 2011-10-7 10:19 AM
多谢您的分享！作者: Mimisan 時間: 2011-10-12 11:01 AM
first time heard & saw it, thanks for sharing, thanks tvboxnow!!作者: pepperjellabies 時間: 2011-10-15 09:35 PM
