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 3 I8 Y! V9 S' D- |公仔箱論壇 " U) }& u2 C6 u LIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.77! D; \3 Y( k$ x! C
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。( p3 M) T5 R$ S* D. G 8 c% O6 ~- J# E- S; P' g# G5.39.217.77Even after you see it, it is still hard to believe! ( D; O' p' Z% j( h5.39.217.77[attach]1486499[/attach]) ^8 f+ {* @1 v' [. h. e* I
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ) T0 \2 T& f1 m$ M7 N6 }tvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. ( f# E8 _4 x" M
It is located in the city of Magdeburg, near Berlin.4 ~; V: G% h% t0 ~1 S
- t$ }5 R @+ d. }9 q; _3 @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。The photo was taken on the day of inauguration.! d! \- z* z- r l
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 3 m$ ]% x3 p- K3 Q公仔箱論壇 6 n/ t _% c2 X% {, W; cTVBNOW 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:5.39.217.77; n$ S+ j1 ?" Y( A/ V- J
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,- ~: w3 ?' T6 Z
Or just the weight of the water? 1 j3 l% J# l# K6 x: p5.39.217.77tvb now,tvbnow,bttvb( V5 [! t5 z+ J* k& O* q, g
Answer: 2 G0 u2 R" { M5 _2 Q公仔箱論壇tvb now,tvbnow,bttvb, T0 o4 Z3 |) @0 |# w4 H0 H+ t
It only needs to be designed to withstand the weight of the water! S7 B @/ f4 N7 }( ^9 c: ?tvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded . r1 o9 ]9 i/ Ctvb now,tvbnow,bttvb - \5 ~+ o& p0 U9 D6 \9 t) [4 g ( G! s, |# ?+ @1 ]5.39.217.77The Incredible Magdeburg Water Bridge in Germany5.39.217.77: Z3 ~4 q& _" }7 U' }
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.5.39.217.77& c. C0 W6 Y& X! E* E0 n
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. tvb now,tvbnow,bttvb9 v. l) }/ E' S* R
9 o/ a6 }" u" g1 G! m; 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. 5.39.217.77- _/ m4 d8 |3 c* M+ U
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