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 z% |" a. p9 g 2 k8 b% _( g# ^5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics. : c( D3 w8 }0 Q$ u( @/ m$ j" a0 vAMAZING! ( S% l2 O! \' Y - A$ I6 g: T- J, H) a9 m' Itvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!tvb now,tvbnow,bttvb" W A! i6 q" I* k [attach]1486499[/attach]tvb now,tvbnow,bttvb% _0 h1 ~& [$ ~! c! b o5 S: c
3 k: k9 O4 o- |. T# @+ wMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! & p6 R" v6 C( x- C# S
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. F4 l, `7 W6 d5 S: y7 Y+ Htvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin." q9 e8 p! \7 G9 g9 g8 s( {' V7 r
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The photo was taken on the day of inauguration. 8 {/ w& d" m9 z/ R- Q7 \) V% i公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. " |2 f: w8 a% d3 B. [. P4 Ytvb now,tvbnow,bttvbtvb now,tvbnow,bttvb/ K4 N% y$ C7 U' O0 a9 M3 N- \
Question: % h9 u. v! U2 F 8 M7 K' T& j, X# }* B; \4 [2 b- g0 n0 ~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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, $ I& c, [. K3 H, p* Vtvb now,tvbnow,bttvbOr just the weight of the water? " |/ `5 o" U8 W; V4 d& U3 G公仔箱論壇& w1 I" }% ~, e" h: `1 v T
Answer: " ^7 M9 m" @1 K$ B4 {9 n5.39.217.77:88985.39.217.77:8898# Y4 Y7 [$ B8 [5 ?# C3 j
It only needs to be designed to withstand the weight of the water! & \' s0 o) y7 W
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 ! C/ W6 a; W* |, S" ~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。1 @! |* x) F$ V8 M, \- z
tvb now,tvbnow,bttvb0 Y+ \5 W* @" j- k% I The Incredible Magdeburg Water Bridge in Germany) U' n% g& T4 ~0 G) v% A
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.tvb now,tvbnow,bttvb0 u/ `6 b5 Y7 X# i/ L
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. 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。1 o$ u& a/ S Q4 o4 @
, o; v5 x# s5 Htvb 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. tvb now,tvbnow,bttvb. N( z- {+ C: @) K5 c7 a/ t
2 L, W( E3 w3 n9 iTVBNOW 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。( b5 ?" Z7 T3 `2 m, ^, n8 d7 S1 p [attach]1486500[/attach]5.39.217.77:88981 v# I" g# p: R9 h* Q# ? [attach]1486501[/attach]4 c: H/ t6 \/ F' L( }3 ~- ^/ N [attach]1486502[/attach]tvb now,tvbnow,bttvb, `$ R9 ^: P* N) ?# G6 ] [attach]1486503[/attach] . U- Y0 _( t1 ^公仔箱論壇[attach]1486504[/attach] 4 j' f' A1 u' E, B: {公仔箱論壇[attach]1486505[/attach]tvb now,tvbnow,bttvb7 G- r( d! |: H8 g i: e
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