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6 O0 r |/ W1 g" l. f
( O$ W7 Q5 x6 e* etvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. * L! F3 G! _9 `/ A# U公仔箱論壇AMAZING! 5 |9 D6 ?' t/ [ 7 g( `# f( [- DEven after you see it, it is still hard to believe! ; G; i2 {; R! q$ d; R: Z$ J( u+ Xtvb now,tvbnow,bttvb[attach]1486499[/attach] 6 f+ g$ V% x1 s0 ~" [% utvb now,tvbnow,bttvb . V F# w0 P [" X* _0 vTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 2 H* q, `* ] X( T' aThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.77:8898" L! y5 N& }- z+ N& K2 A
It is located in the city of Magdeburg, near Berlin. ; m7 ~8 h9 g D/ ~3 d公仔箱論壇; F' T4 C. ?3 O! i* a( X6 z
The photo was taken on the day of inauguration. . _( t+ B4 K# T3 p/ L' TTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. , e% Y# h$ J4 f b& j: [# Mtvb now,tvbnow,bttvb 4 k% F7 D3 R$ D) m" S- l' N* q% htvb now,tvbnow,bttvbQuestion:3 Q$ t _* A" x. e
, d0 A7 N, |, ^3 b' XDid that bridge have to be designed to withstand the additional weight of ship and barge traffic, ( Q$ m4 ^' Y- S2 i公仔箱論壇Or 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。8 S7 G E& F1 H
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。& p0 {5 p2 b- z G8 O3 h
Answer:* m7 b8 N* r6 w5 u6 n0 i3 P6 [
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 m2 c' `+ F9 O) q" ~ ~
It only needs to be designed to withstand the weight of the water! 公仔箱論壇4 O; |$ [7 w+ e" X7 q8 k- [. u" \
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedtvb now,tvbnow,bttvb' @5 N L3 A3 q5 n tvb now,tvbnow,bttvb, L1 h9 a+ x; d7 ]
$ ^/ s, ]6 {# o7 L; J, pTVBNOW 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。The Incredible Magdeburg Water Bridge in Germany 2 n/ S7 i# f) d1 |/ n8 n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. . h5 P. C% X. d4 j5.39.217.77:8898The 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. 7 y# Z9 O6 d0 i- [5.39.217.77:8898 % @4 B( D, O5 A r* g( l& X, J5.39.217.77:8898Construction 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. + K) ~! I1 V; v, z: [/ N
0 Z" w9 z3 e4 c! F2 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。 5 r$ w P/ g- ]) G ?, G6 w3 Utvb now,tvbnow,bttvb[attach]1486500[/attach]. b/ u& h& _' T9 I+ F5 C [attach]1486501[/attach]tvb now,tvbnow,bttvb) q% T& w% h$ m9 r; J [attach]1486502[/attach] & K: y9 {2 G; O; n8 D- UTVBNOW 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]1486503[/attach] o. W7 }+ M) M. z. E7 i4 q. s[attach]1486504[/attach], k9 G8 K" \( F& C" A* q+ y9 N% k [attach]1486505[/attach] - n& m5 z$ A9 q7 B4 X公仔箱論壇 $ `5 w* V' k# T3 z公仔箱論壇作者: busyfun 時間: 2011-10-4 11:33 AM
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