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 . p3 y( @9 C5 j" z# b% s" [
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If you are not a Physics person, read on and learn a fact of physics. 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。; l! W* [7 E9 ?" s
AMAZING! $ _6 @! \1 L7 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。tvb now,tvbnow,bttvb6 @3 J' {% I. z, Y/ @2 w
Even after you see it, it is still hard to believe! , `( P4 X. `1 w, I' B( X8 L) U2 V[attach]1486499[/attach]5.39.217.77:8898% }( u/ s4 T. ]2 W8 a# Y$ U, k/ U, Q
5 D( }5 E9 ?7 ]- x' JTVBNOW 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! 0 `( z2 `: E9 i公仔箱論壇This 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$ W- e$ b3 h$ y- E2 e
It is located in the city of Magdeburg, near Berlin. & U3 @" a' T& w; q. O7 @0 j: k5.39.217.77:8898tvb now,tvbnow,bttvb! O9 o: ] k- A' r0 m
The photo was taken on the day of inauguration. - H2 @& |, B1 v h- a0 w+ 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。To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.tvb now,tvbnow,bttvb8 v! x; ?( n- ]' ~3 ^8 s/ P, Q: ^
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Question: 0 L" i; f5 {; T9 R* s1 @/ [! Xtvb now,tvbnow,bttvb公仔箱論壇" A$ h& j$ V" E% T8 I
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 7 b6 i3 L8 \+ k2 g, SOr just the weight of the water? ! M( b9 P0 {- F# I7 E t5.39.217.77:88982 s; Y/ R; Y- z
Answer: 0 ]( ]" h9 X1 R$ B/ t1 w- \' a5.39.217.77:88985.39.217.77:8898/ m4 Y. B3 v+ [5 j
It only needs to be designed to withstand the weight of the water! 9 ?! k9 z- [" r9 `3 m& `
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 6 d+ F* x7 n1 {. ^/ q& H3 z$ U公仔箱論壇 1 E: s1 f, \/ j y" P, _( P公仔箱論壇! T/ ^" {- C& ~. y0 p. E The Incredible Magdeburg Water Bridge in Germany I% T) ~/ D# _3 m4 Q1 V2 U2 V5.39.217.77:8898The 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. 6 {" X- p1 |/ U0 T/ b公仔箱論壇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. 5.39.217.77:8898( u3 W% Z0 d! I1 X, |
) t5 u+ h: Q& Q% Atvb 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. - Q, J0 t( ^$ c/ z
3 X0 [5 E* m) G6 D, s# z 2 G/ \6 Z3 y7 f- b7 B) U* X7 }4 D[attach]1486500[/attach]( ~$ [1 [7 N+ u [attach]1486501[/attach]公仔箱論壇' o; I( k5 P" z( D3 _' \' Q [attach]1486502[/attach] ( ~0 j; y: ~& i% O/ y公仔箱論壇[attach]1486503[/attach]公仔箱論壇" r* n: M* p: W2 Y' t [attach]1486504[/attach] - u3 u Z! c9 l5 T, q% c: }/ J5 otvb now,tvbnow,bttvb[attach]1486505[/attach] : `3 z9 K4 ]/ v4 }( U2 V$ G9 e2 ]( h5.39.217.77:8898TVBNOW 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 A- v; p. F' o" Z4 G& H 作者: busyfun 時間: 2011-10-4 11:33 AM
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 r ]2 d! W' R6 H$ {