本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb# h' V( J4 C; [* l
( z# i+ u) F: F; I# ttvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb& Q& Z1 s/ M1 Y
AMAZING!
/ y0 O5 }/ @1 f+ c* |/ z4 `3 `7 L, Dtvb now,tvbnow,bttvb5.39.217.76/ X1 ~% \$ B1 i7 L
Even after you see it, it is still hard to believe!
3 S S1 s! I$ H) _) W- l5.39.217.761 J( D! v: Q; }- v- h. k
x) } K8 z8 j( }$ kTVBNOW 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 K. w2 h1 U& Q6 k1 B5 z2 D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.
8 [- h6 t, F8 ^, |1 lIt is located in the city of Magdeburg, near Berlin.公仔箱論壇1 Z* h+ r! y2 P( } I
tvb now,tvbnow,bttvb. S! i: s7 n; L4 ^6 s5 @
The photo was taken on the day of inauguration.
- w7 @$ x3 u3 ^To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
5 {- \" s8 w; L* xtvb now,tvbnow,bttvb
6 w( S& S6 m# u7 S) c) ~" s) Y( f5.39.217.76Question:
" |7 @ G; B; G XTVBNOW 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 V$ p7 \3 a6 r9 _* v7 ]. F
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
$ l5 \* P$ a7 F9 S1 GOr just the weight of the water?
& x! [" P5 \* p+ W( Y& RTVBNOW 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。
. P7 @. v8 h Z; wTVBNOW 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。Answer:
7 ]% C( K2 D+ O' 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。; |7 V& l4 Z) S1 L6 y$ C' W
It only needs to be designed to withstand the weight of the water!
1 H+ V' k& ?( E' N$ g) M# l; WWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded公仔箱論壇$ S5 x( j9 H" W
2 J8 b3 B* u: H' J% Z$ C
: L: [; p9 `! v% Y8 Dtvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb0 u9 ?- Y8 |: ?, H3 W* C; j' z* B0 r, d
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.
) c2 _+ U7 R. h5 A i2 KThe 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.
. k4 ~* }; J. {( j! m公仔箱論壇
4 `- |2 {* I6 k. e5.39.217.76Construction 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. & w- Y1 O O% c9 X
& z( K# @2 F5 G' L. } ^
0 k( b5 s/ b e公仔箱論壇
" ?4 C4 F3 K% A: i
, O. C9 V. W2 F9 p$ W' y2 s公仔箱論壇5.39.217.762 c- Q% ~$ k4 o" R
5.39.217.762 @5 N, o6 h! `$ h. l
6 z+ J9 Y; ?3 f* d$ ]
& W5 n7 D0 N$ i$ C5.39.217.760 B% m( ^3 _' A' N, r8 I
|