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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 公仔箱論壇( w) g* ]# C: Y' o5 E; H5 c- P- ]

) d9 S9 q( J3 y& W! I& 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。If you are not a Physics person, read on and learn a fact of physics.   
5 b# _9 k8 r- {9 W# w/ q/ UAMAZING!
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1 L0 ~5 Z5 ?& P0 `. h" IEven after you see it, it is still hard to believe!
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[attach]1486499[/attach]tvb now,tvbnow,bttvb4 w  Q0 i3 [7 Q) J

, @/ @/ B  J+ wMagdeburg Water Bridge in Germany  
What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb, {/ C9 q* r9 x3 Q6 m/ s
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
, B- r( y; w$ P* p8 C+ F' l9 fIt is located in the city of Magdeburg, near Berlin.

/ y8 Q& w) ]8 v7 b; h5.39.217.77:8898tvb now,tvbnow,bttvb& }3 ~0 a, C  y+ e
The photo was taken on the day of inauguration.
) ~3 J" {& t  @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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.# H0 [$ a1 Y) z, W$ A! W! |1 @

9 G6 ]; t# Y" v* J+ |$ \tvb now,tvbnow,bttvbQuestion:

' b$ Y: v6 x8 p! Y( D1 z公仔箱論壇
' F0 Y4 }4 M; _* u9 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; M: Q# A0 A! ?# Wtvb now,tvbnow,bttvbOr just the weight of the water?
" F* Q+ k! [, o' R6 ttvb now,tvbnow,bttvb
& H1 d. `% m6 N) I  U$ x: ltvb now,tvbnow,bttvbAnswer:

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It only needs to be designed to withstand the weight of  the water! ! G4 S! L( l( x& W
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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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。; f# e% C1 `; n- w8 t
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The Incredible Magdeburg Water Bridge in Germany
- h- Y/ H. }" K+ e, Etvb now,tvbnow,bttvbThe 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.
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: q8 S% a$ \- S, r$ p; }tvb now,tvbnow,bttvbConstruction 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。' P+ n# ?5 R2 w- g6 t

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[attach]1486500[/attach]tvb now,tvbnow,bttvb+ N6 j6 Q: W; D  M! W
[attach]1486501[/attach]
+ s8 B  k2 J9 q( Z) R% t: U# J[attach]1486502[/attach]3 m4 W; s& O: R1 J. j6 u) e
[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。+ r+ }9 k! \6 u; ]
[attach]1486504[/attach]tvb now,tvbnow,bttvb9 S; T) l* {& h( t$ V
[attach]1486505[/attach]
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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
# |' X' b! @3 v3 o3 `( s+ O5.39.217.77:8898連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
( ]% L+ Y3 A$ O9 a8 H公仔箱論壇也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。
& x4 ^/ z5 z1 n! H$ h& vtvb now,tvbnow,bttvb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。公仔箱論壇/ n" O' X7 k2 j. P: s% s' g" \
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。
1 z6 S# r8 g) [8 R( ^* O" ltvb now,tvbnow,bttvb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tvb now,tvbnow,bttvb8 N+ y) K# M2 e2 E6 R; q1 f' @
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。
1 i6 T$ h: ?1 I& P3 o8 }5.39.217.77:88982003 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) p! C5 e- L# C8 q; E  n8 q- `
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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