本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 : t5 V/ I1 ]2 S3 }. U$ M. n. @
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。. O. a2 o# b' _' k; p8 x! J
If you are not a Physics person, read on and learn a fact of physics.
: N+ ^$ F/ V- i3 a) ?3 W4 XAMAZING!
' ]( v4 [& @; ?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。2 K; O8 g b2 t" |! t: Y
Even after you see it, it is still hard to believe!. e5 _, h. T& z! L$ T8 z
公仔箱論壇* a9 | C* t/ K1 ~* ~1 V, Y- r
/ r5 ~+ d9 h3 J) S \% oMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
: E. O9 P, G# r2 |This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 6 I7 W1 Q: {1 ?! _
It is located in the city of Magdeburg, near Berlin.
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, |2 s! t9 {& |0 u$ F5.39.217.76The photo was taken on the day of inauguration.公仔箱論壇/ i/ N( _( o9 x
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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+ D, L- U2 M' @ H# Q, c8 W4 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。Question:
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb4 H/ ]' Q$ n" Z! V T4 Y
Or just the weight of the water?
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Answer:tvb now,tvbnow,bttvb8 X+ ^0 ~! y# L2 @
% B2 W: K6 k# |* \It only needs to be designed to withstand 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。. W2 [& |7 n0 _, u3 p! c6 s
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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0 b) s3 W1 T! _- a& ^. W: C公仔箱論壇The Incredible Magdeburg Water Bridge in Germany/ E: W% m) b( H0 D& R
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.
! q2 w" i S& b F+ uThe 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- ?: M. F+ v1 n; M0 h
+ F$ T3 Q) T0 \4 e) itvb 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.
# q! H+ ^' @2 d公仔箱論壇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。- n7 s) e6 v. G* Y, A0 v" e- |8 Z
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4 Z N/ R0 a& M! pTVBNOW 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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4 a. r: P. _0 x! b0 L8 I公仔箱論壇5.39.217.760 g) t3 t% B7 } P
tvb now,tvbnow,bttvb# S% d; [0 `; i3 Q' L/ d. p7 K
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