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 5.39.217.77:88981 r* j7 T) o) W! i: E
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If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇4 c7 n1 r; C! c3 X8 v. q M
AMAZING! - B! c; V" s& ^ B1 v1 |+ r" L' T5.39.217.77:8898 ( X" ^7 w! M K" DTVBNOW 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。Even after you see it, it is still hard to believe! $ H9 l3 p1 w3 p" W[attach]1486499[/attach] U' |0 W7 x" H# G8 g3 t& ~
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! * e8 N- W1 ^) P ]/ a; t
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( \ H5 c, b# N# w4 Z+ f8 _ i$ d
It is located in the city of Magdeburg, near Berlin. + g8 X8 m, _( h5 R5.39.217.77:8898 ; F: ^' ?( r% W. mtvb now,tvbnow,bttvbThe photo was taken on the day of inauguration. 1 {1 f( u& c8 T, Rtvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.& u! b8 y' n8 U# `: O% @
' X7 ]6 N1 k2 b. z/ g- MQuestion: 6 e5 y1 m) k8 p6 qtvb now,tvbnow,bttvb" \4 l: _4 n& A6 I y. K
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。3 Z3 y1 H+ G2 ^- h! X. }
Or just the weight of the water? 5.39.217.77:88982 m1 P5 ]* m( c) {/ }. r
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Answer: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 ]1 R& F1 R0 w2 q2 i
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It only needs to be designed to withstand 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。& I% j( L$ Z G+ `' P
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loadedTVBNOW 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 ~' H6 H. o8 C) g# \( @ 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。 e5 x3 W+ L" `6 U1 Q; C
* a: e6 [* L3 XThe Incredible Magdeburg Water Bridge in Germany . I' H1 b8 s: O( r. K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.公仔箱論壇8 Z% @& X: k* C1 v2 B+ C, t
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. " B' V- |$ s" f8 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。 ) s8 K/ `5 B. R3 B+ C% v& K2 Qtvb 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. 5.39.217.77:88982 a i+ l% M- b6 g9 f
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 A" Y' L) {& J
0 b$ z9 D, {1 e* V' D; H! p/ B[attach]1486500[/attach]5.39.217.77:8898( u5 k, I0 U6 r ?7 D3 y [attach]1486501[/attach] : h _! {2 R% ^, { _5.39.217.77:8898[attach]1486502[/attach]公仔箱論壇2 G1 ?( w" d( V" s w; n7 O [attach]1486503[/attach] 4 r% u H9 t; F: utvb now,tvbnow,bttvb[attach]1486504[/attach] 3 u( ?$ y, L" A. b# {9 `/ i" HTVBNOW 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]1486505[/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。( s: f# k9 j. f. Y, l, @
. ~" d4 m1 ?% c' U: Ctvb now,tvbnow,bttvb作者: busyfun 時間: 2011-10-4 11:33 AM
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