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標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁]

作者: lilitan008    時間: 2011-10-2 10:09 PM     標題: EVER SEEN A RIVER OVER A RIVER?

本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
( D- z4 {: D; r; 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。! z2 T, t8 G- k3 b  U# b# }' g
If you are not a Physics person, read on and learn a fact of physics.   ! ^9 f! E+ F. q1 [
AMAZING!
tvb now,tvbnow,bttvb: U7 w9 g, K9 w6 O( C6 e$ N
tvb now,tvbnow,bttvb2 U1 w7 g6 ^1 n. ?8 j
Even after you see it, it is still hard to believe!
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[attach]1486499[/attach]
3 d! y$ a9 O# y+ D& mTVBNOW 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 D8 U/ b" P# ?公仔箱論壇Magdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:8898$ R2 f* [! j2 c# P" {6 {
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇. p2 S1 h2 m( R0 ^2 [, ^- t" q
It is located in the city of Magdeburg, near Berlin.

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The photo was taken on the day of inauguration.
2 E5 J1 W8 K8 M+ ~. v# G% ?5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.& x+ a; u. j+ y+ Y

, C  z) c. [. e/ l* ]5.39.217.77:8898Question:
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 L$ F* _: ?( q8 i
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 z2 t5 t; [/ _/ ]6 Z0 s+ _
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
) R8 V  ^& P5 d0 v* u4 hOr 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。1 B) E& z" c8 }7 ^( O1 s" f7 `# {

/ @' z9 Z, d1 \" P! L5.39.217.77:8898Answer:

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, k4 o/ ?0 C" Y& p$ U# [It only needs to be designed to withstand the weight of  the water!
' _6 p. R6 t# |" t9 s5.39.217.77:8898Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
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The Incredible Magdeburg Water Bridge in Germany" d% v- K. Z2 `* {0 n
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.
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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. 2 T( y+ X7 @* H$ s' j* p. A; i

# G4 l0 U2 z) q, K" V4 QConstruction 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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[attach]1486500[/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。- v9 L7 ^  s, I8 F8 J, f
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6 U( P7 U4 N9 n: \[attach]1486502[/attach]
8 O/ w, }' @) f. }. c$ r: z% q5.39.217.77:8898[attach]1486503[/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。1 v) m; K5 ?; S
[attach]1486504[/attach]5.39.217.77:88982 W& D, q- v" u) g1 i: w) V7 [
[attach]1486505[/attach]8 h7 k8 q+ u- U( {3 c. d$ j) h
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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tvb now,tvbnow,bttvb5 P. ^( J7 |" _- w
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇公仔箱論壇) Q" ^& t5 R- D" ~: V
也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5 s, F0 N8 u) ]
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 ~5 b  L* o$ L
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。
8 U+ A" w) |+ g9 {5 w9 q# B0 H公仔箱論壇於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
  ]/ w+ u" b3 i5 u2 Gtvb now,tvbnow,bttvb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。
' E" Z& [0 f5 V3 c8 j9 s2003 年正式通航,水橋全長 918 公尺。 而 2003 年之前,在米德蘭運河和5.39.217.77:8898; ?. D+ j3 [# h) a2 S
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

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