本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
' s& \8 Y& Q+ 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。
) a' n4 A$ v* t& Z! T e' I: Ytvb now,tvbnow,bttvbIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.764 F) [; S/ u a: z' [
AMAZING!
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Even after you see it, it is still hard to believe!' ^% l( T8 p1 S# v3 G4 p9 g
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4 C; R4 `% a4 A. L/ iMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
$ U# c% h- D) G. M! J" {2 {* O! i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.
$ {( p% D1 O) T$ A公仔箱論壇It is located in the city of Magdeburg, near Berlin.
8 M) o! H; g' R2 `' zTVBNOW 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。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。& ~, o9 S# u+ F1 ^6 ~; V" p
The photo was taken on the day of inauguration.
5 ~3 P3 w- H! v# b1 B( \公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists." e' Y- h3 o* Q t+ A
! @: ~$ M/ \5 O7 J9 z% T2 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。Question:2 _0 l6 p2 `! {. q
0 ?, @0 K. R3 R- i& x9 g# Z5 S" E& R5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb8 _, e) S& ?" p5 w9 V7 x+ j2 g. G
Or just the weight of the water?
2 `( i! ^7 S9 T, 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。
' T5 R1 k) r6 O6 Q: gAnswer:
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$ Y& [& z8 G" `9 G9 e0 h! a8 @公仔箱論壇It only needs to be designed to withstand the weight of the water! 5.39.217.76& E0 m0 w. n9 {9 G" z
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded2 q: p, f q, ?5 v5 \9 Q7 C. I
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n' v. m- K- t" \' TThe Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb7 J2 I2 \6 u* y6 g- Z7 W
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.
& u4 b( Y8 B3 b/ E5 l- g/ m8 ~7 X; [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.
$ s/ B* c9 e4 a. v0 A, l q) uTVBNOW 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。. _- w$ ?4 |# X$ b( a& ]1 I
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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- J z- T+ i* C# 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。
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