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 0 S. y7 u$ W% H2 R3 I" N. d& f
5.39.217.77:8898, C8 a; B: ~* D8 V1 q! o/ [
If you are not a Physics person, read on and learn a fact of physics. ; D$ ^& E. G# J) R; Ztvb now,tvbnow,bttvbAMAZING! 0 c; ^" O* }" Z0 q J公仔箱論壇 0 B) i: M5 r6 \! r" j4 vtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!' ?$ m3 E1 ^' Y4 @1 S+ d5 g1 | [attach]1486499[/attach]5.39.217.77:8898 w3 R, c9 h) X N, u" c3 ?. l
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 s0 O0 R0 m( [' Q4 n. ~
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ) ^% t) ~. I2 p! U; ?1 ~9 F0 iTVBNOW 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。This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ( \7 q' z: M. E# M: fIt is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb2 m7 |+ u) ]0 Q7 {/ S
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The photo was taken on the day of inauguration. 7 N/ @; V* o& N- d公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb1 v% u+ L8 x& V8 O
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 J! N0 `* K0 R6 t/ n4 B' v# I% {
Question: 0 k. g3 c0 s C. a5.39.217.77:8898 ; Q7 `4 n$ l( B6 R. yTVBNOW 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, 4 T; \' D! w: E+ A" u5 T公仔箱論壇Or just the weight of the water? 6 o/ T8 v( Y; K5 k6 P! V. ^3 f$ ]' j. n
Answer: " a& `' q5 w) G! X6 Etvb now,tvbnow,bttvb' q! Q; D8 Y3 q
It only needs to be designed to withstand the weight of the water! , [# M! U6 R8 \' a1 e: QTVBNOW 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。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded2 J# _7 t2 g0 Q- m! F3 X 5.39.217.77:88989 c4 T: V' Q. ~* T% K) m- N
4 s. o9 u! a- X. B% y& p The Incredible Magdeburg Water Bridge in Germany Q6 \0 K4 n0 ]1 jThe 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.tvb now,tvbnow,bttvb8 K# T/ |5 b; j! S
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. $ E1 X% e' u' ]tvb now,tvbnow,bttvb / C& {/ t2 B/ NConstruction 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. * ~' M7 f' T5 f, }tvb now,tvbnow,bttvb : c& w) K& S" n& S) f9 q8 k, p4 G 7 Z& Q! U: i, G% m, e; U" e1 E- 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。[attach]1486500[/attach] P6 p- {) }5 u5 ]3 @; |, @! n [attach]1486501[/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。" U" R0 V f! n$ b5 H8 l3 `1 M2 {: x0 o [attach]1486502[/attach]: n9 j, |4 l9 i- P, S4 K. N [attach]1486503[/attach] ( f! S, C6 u: p[attach]1486504[/attach] 4 N3 j& R8 ]+ X4 x* U) i3 e公仔箱論壇[attach]1486505[/attach] 6 V' T# }5 [& D( Y! `3 h( ]公仔箱論壇 6 \1 P- Q) A) W! g" N' k5.39.217.77:8898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 / D9 L0 n! q) l5.39.217.77:8898連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇 + `) P& W3 L0 z: o% R9 @6 F9 E, E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。tvb now,tvbnow,bttvb6 k! i% q5 E4 ~& n8 h3 w
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。tvb now,tvbnow,bttvb6 F+ ]; }4 M1 |* v+ [% q1 D8 t! p
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,bttvb t- j" F8 x9 K0 P
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 " a# x- z2 K# D6 w: dtvb 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。 3 P: {- x( X8 c) S! 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6 d. ^8 Z6 N. l) L2 D ^9 c' W+ s2 {
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
