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 q/ E7 w; r" S公仔箱論壇: I8 |! c/ X! h5 j) A# A
If you are not a Physics person, read on and learn a fact of physics. 8 `. b1 t7 p+ L ^. s: W9 N D
AMAZING! 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。* Q6 C4 a* O1 Y J% J# D ~ 4 o- X3 M7 l- W& J/ M. eos.tvboxnow.comEven after you see it, it is still hard to believe!公仔箱論壇' r4 r* A7 c5 c+ x" C7 W4 r9 M" G [attach]1486499[/attach]os.tvboxnow.com* ]" u" [4 x0 v# n
O$ D5 r: B( Y' j& o+ _Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb5 B" I1 R6 c. M2 F! C9 D
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ! o, k+ {" a2 @" {$ g' z公仔箱論壇It is located in the city of Magdeburg, near Berlin. % t: ]" b; k7 M1 K* Wos.tvboxnow.com / E4 _, v9 a) T/ e% ]1 D qos.tvboxnow.comThe photo was taken on the day of inauguration. / i( ~2 z: V6 L+ ^To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists./ K- r' j x$ s+ @% D* B9 Z
2 v8 m! J4 C# d8 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。Question:1 P. H C9 q# B+ a4 A
s/ t- b, y7 i: R5 l$ i- [# l公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, # h$ K0 r3 }# nTVBNOW 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。Or just the weight of the water? 9 ~( @! ]1 V% eTVBNOW 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。2 s& @3 A; i" g+ o8 c5 k) U
Answer: f; Z5 _: j k/ U$ M; Zos.tvboxnow.com 2 ]- K/ E1 f& H9 O% F0 ?It only needs to be designed to withstand the weight of the water! tvb now,tvbnow,bttvb5 j: b* Q" T. c7 [: v6 H
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded9 ^) C& H4 _+ S% P& Q0 L ) i# q' Q1 o+ M( H6 E I, Btvb now,tvbnow,bttvbTVBNOW 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。; n. ]+ j+ b" ? The Incredible Magdeburg Water Bridge in Germany& `) [# T* l- |3 ~4 N$ o9 e1 y
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! R. A- U; N+ h+ M, O1 u
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. 1 Q3 v4 T- w6 t" A& F7 Y5 n; O 8 W' Y6 n& [3 E6 W1 r. etvb 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. 4 \+ B# E8 [5 W) P: O; x3 D公仔箱論壇os.tvboxnow.com4 |. m: K: `( a7 M0 t, n
