本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 5.39.217.761 z5 e$ M& y" I; W1 @
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If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb7 [3 p+ w8 v7 a0 P
AMAZING! 3 R: E+ F1 O$ O9 \
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Even after you see it, it is still hard to believe!" ]' N9 X4 U; `/ P: ?( ?
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. B: c: X6 [' g; qTVBNOW 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! ( U! L% U" A/ F+ A4 R9 F
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
$ I' A& q4 i5 ]0 gIt is located in the city of Magdeburg, near Berlin.
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The photo was taken on the day of inauguration.公仔箱論壇' B2 B8 ]! V2 x0 {3 h7 x* W
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.: `" }* z% k/ ?7 v1 }9 w
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Question:) I+ {5 L# k3 l% U8 G7 t
' t0 i1 J3 i; 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。Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
|7 t6 o1 a+ b0 Y4 }$ S7 X* @5.39.217.76Or just the weight of the water?
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+ n. v0 X4 ]/ P0 E: FTVBNOW 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:. o" \6 a e& K1 a) ]" f
0 y/ d" Q8 v5 \- j* r$ hTVBNOW 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。It only needs to be designed to withstand the weight of the water! 7 W6 h9 S3 k- {# \9 \. j# 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
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5 v; G0 K' H0 i4 B" g公仔箱論壇The Incredible Magdeburg Water Bridge in Germany
) d. z5 J# d) v5 U& v( ?! OThe 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.
, T: \9 ~" F$ t. [tvb now,tvbnow,bttvbThe 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. 5.39.217.761 a/ j: v" j+ U/ z
, g6 z. U$ P- z; bTVBNOW 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。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.
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2 K0 F1 L0 E: y2 [. \3 b) \公仔箱論壇5.39.217.76" h; F! K6 f/ z5 `& p% r3 n2 h$ I
6 q# G) x. i' TTVBNOW 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。公仔箱論壇, `+ E) u# J, T, N; x8 c
5 H* L1 v, B2 W& j' ~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。 |
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