返回列表 回復 發帖

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. G4 u" m+ P: m# n  a9 C' L( s0 H

' s, I1 {$ C; X# [0 _tvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics.   9 g1 T2 ]$ b  n; V& i
AMAZING!

7 c# r7 V, e( \& ?/ X+ B1 RTVBNOW 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。8 b0 r) ~6 D; |
Even after you see it, it is still hard to believe!
1 K1 X0 G4 Z4 g
tvb now,tvbnow,bttvb: G& h2 ~$ j& ?2 A/ q( o8 E

( b( Y# A' _# p0 E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!
  x; Z: Q; a( O5 U* t% Q5.39.217.77:8898This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
" h% j, |4 i/ ?  f' d0 A& 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。It is located in the city of Magdeburg, near Berlin.

% {4 W# S; J4 Z1 y4 F  c/ T+ Z& X# sTVBNOW 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。! w7 D: X( s- {5 c$ D
The photo was taken on the day of inauguration.
" t( E: O/ g9 m5 c# W5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.77:8898' z- {# p9 q4 Q! O% G4 m

  x, O9 m5 e+ N  J公仔箱論壇Question:
) a4 a9 a* e) `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。* r2 b6 X3 n# k+ b
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,0 {2 b9 h/ Y- K/ ~, [) B0 a  X
Or just the weight of the water? : X4 c/ \. l8 B. N4 U  `# p
tvb now,tvbnow,bttvb- j' }8 ?' \7 q, y4 e' u6 y1 r
Answer:
公仔箱論壇4 I% o1 I6 O9 P/ K" A5 F( J
tvb now,tvbnow,bttvb* d+ N# G' ]' U$ U$ J3 `, `- ?8 U
It only needs to be designed to withstand the weight of  the water! tvb now,tvbnow,bttvb# b5 x# n1 E5 W% R
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
5.39.217.77:8898$ ^' m  c. k* a8 ?( K) z/ u
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 t* s8 o: s) m- x- @9 `+ S
公仔箱論壇4 S* I* U7 Y' X4 u* V' B4 V1 F5 o
The Incredible Magdeburg Water Bridge in Germany5.39.217.77:8898# @+ H2 D1 Z* C
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。9 e9 g1 _5 Q7 p4 A5 E
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. tvb now,tvbnow,bttvb* W7 A8 r; @/ D; T/ f0 B

4 G& Y0 s+ B- l1 n9 n# gConstruction 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.

; C, A' z- _* Q5 u/ M5 r. y公仔箱論壇
公仔箱論壇9 ?. E, b8 W% l- Y& n0 G

1 M( _+ o: i0 L6 U* \tvb now,tvbnow,bttvb
! ]4 }7 ]/ l) x% B5.39.217.77:88986 K9 O. I2 f+ I+ S
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。9 M: f1 J2 Z7 m4 ?' z7 ]% v
, J, a+ B  Z5 O9 h$ D- h( }
tvb now,tvbnow,bttvb' W, }# l/ j0 i

$ G2 p5 T5 n/ M+ F  C( q2 C公仔箱論壇公仔箱論壇6 p/ j& ?+ b$ M- X7 R/ d
附件: 您所在的用戶組無法下載或查看附件

平壤核子能源研究所
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,bttvb* s" u6 m5 o; }
連通兩條水道的最初構思,而羅騰湖 Rothensee 升船機及大橋錨碇
" j: z  G9 b2 }$ j& 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。也於 1938 年安裝就位,但在二次大戰期間,建設工程被推遲。5.39.217.77:8898% m8 `1 B  `# s, T
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- s( U* w: b3 J2 }
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。
$ J! ~* h2 l( N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
" ?: _% i) h9 s% K) J9 \7 utvb 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。 : S8 E; s5 `: @: j
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5.39.217.77:8898- b8 g/ \  n, `3 B# q. x% |( j$ C* l% f  R
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。
1

評分次數

  • k23bb

多谢您的分享!
first time heard & saw it, thanks for sharing, thanks tvboxnow!!
提示: 作者被禁止或刪除 內容自動屏蔽
返回列表