本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 & X% L; y9 |+ p, f2 j
0 f+ e9 q$ f, a m/ t3 |2 g3 X. Y% p3 ~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。If you are not a Physics person, read on and learn a fact of physics.
- h, \& A# v4 u4 d+ n公仔箱論壇AMAZING! tvb now,tvbnow,bttvb. h% m _" e$ E7 }9 P
5 H& F+ t' ]# c) N1 L2 l0 `tvb now,tvbnow,bttvbEven after you see it, it is still hard to believe!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。8 D7 y& s: E" a1 \% W
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& R5 `2 L: o: M( J* Ktvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 2 g m% T! q D+ F5 \9 G
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. # z5 X! j9 V) j/ a8 v! G' P5 q I
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb( r4 S1 ~; b; N, _
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The photo was taken on the day of inauguration.
( ~2 Q9 r6 b. q8 tTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
$ L* p9 ?7 N7 A. V- L% N/ dTVBNOW 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。$ t$ n% s! N% @3 J
Question:公仔箱論壇; e* I2 h' A6 y! |- m3 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。& Z0 f) ^/ P/ Q, R
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,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 }- x5 s G9 c$ Q
Or just the weight of the water? 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。 _4 ~$ V' P% Z: G8 \' \
9 F) ^; V2 n( [% n9 hAnswer:
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It only needs to be designed to withstand the weight of the water! 5.39.217.77:88980 L6 A' G' y) Y. Z5 u0 r
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
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) q# Q+ l* h; e" g% LThe Incredible Magdeburg Water Bridge in Germany
+ r0 R$ P2 v7 P- l! YTVBNOW 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 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.
& z0 ? r& Y/ w7 b6 Y! OTVBNOW 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 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. 公仔箱論壇& J: M; s" C: V- O1 _( B; F5 E( V
# v; J9 K( ^4 G8 R9 O( I. N公仔箱論壇Construction 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.
3 b4 D* |+ {& K. _+ H* {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 {7 u# W7 M' w4 X
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