本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
' Z0 h: {2 f- |% e" }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。6 S4 V+ H9 s8 k3 m
If you are not a Physics person, read on and learn a fact of physics. tvb now,tvbnow,bttvb; O$ I4 g& M% S, ?; H) h; l
AMAZING! 公仔箱論壇+ \4 H, D" W! X4 k
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Even after you see it, it is still hard to believe!5.39.217.76. v7 i5 n' R6 m2 Q- o. W0 c* ^; h
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2 r) r0 r4 Q, Z7 ^tvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
f" F) \6 x& u6 ~' Q5.39.217.76This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. tvb now,tvbnow,bttvb/ Z0 p8 H; U/ S+ \! u4 F1 X
It is located in the city of Magdeburg, near Berlin.
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% ]( y: b% ?& n @7 O1 ~公仔箱論壇The photo was taken on the day of inauguration.7 v% h7 S4 @$ w. F. I9 z" D) q/ \
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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' r( B; V4 O, i9 d6 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。Question:
. y" @+ \: T" e8 T' 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。8 H) S3 L+ N6 u
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,公仔箱論壇& k4 H% S, z# T* B
Or just the weight of the water? 公仔箱論壇8 k s$ S2 B( a& O- `8 i
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6 Q& z0 A/ { w' }It only needs to be designed to withstand the weight of the water!
# F: j* Z7 w4 ?3 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。Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded4 c8 S# K5 G/ m/ _% U
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The Incredible Magdeburg Water Bridge in Germany d( b' ^9 }7 J) _
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.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。1 E- l$ N9 O3 {+ _
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. 3 N7 n0 X1 x5 J( [8 @
3 {( M4 w- E, W: c* F/ H3 v( Etvb 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.
$ J) X5 I( \: s( T% {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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7 G" x/ I4 g2 \- C公仔箱論壇& ?* i" R+ j1 T; o( ]( J* d8 Z
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