本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 tvb now,tvbnow,bttvb. x" N, w* B, q/ N" j
: T& B+ R9 ]) l1 i公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. os.tvboxnow.com3 b" O" a6 s, t
AMAZING! 公仔箱論壇$ v R# U8 D; F& a+ v* C
, ?! M- S4 o$ cos.tvboxnow.comEven after you see it, it is still hard to believe!
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/ _$ Y0 r4 A& Z" M: ITVBNOW 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。
+ I' D! _1 j8 pos.tvboxnow.comMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇' {, c I! j: ?+ j& c: r2 x
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。, M9 \4 G( e; z; e, ?3 j5 Q7 [8 p
It is located in the city of Magdeburg, near Berlin.
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9 h0 { ?/ ^1 x5 @* M公仔箱論壇The photo was taken on the day of inauguration.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 N6 |6 ^: J, p) R! q
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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& _' n5 }. U# [4 k5 W' A" g公仔箱論壇Question: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。* t+ _' @& c E ~# \4 T8 I
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
& i( }- B' O# C& C3 c9 gOr just the weight of the water? ) g* @$ @& v; h- ?' R) P, q- a
9 c& l6 T* z! g- q: ?# a2 N4 h7 N+ y* PAnswer:
5 u, O. J% W1 J" i- m) iTVBNOW 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 I& B* [- j, v$ y1 {- i. e8 o8 jIt only needs to be designed to withstand the weight of the water! / p3 A9 U) R) H: ]% H2 _" 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 loadedos.tvboxnow.com# u' N5 J' H2 }, k' L2 G
; @+ s7 V5 p% o0 s& D+ B2 L1 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。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。& |+ [/ r7 a# _) x3 M& e$ o/ ^
The Incredible Magdeburg Water Bridge in Germany公仔箱論壇1 {5 o( K; v$ y0 C/ U; a
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.% m% h" N" ~5 i2 W7 n1 U8 `2 G
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.
0 r9 ^ k, l9 K0 `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。
: B+ V- [& M2 P+ Q+ F5 C8 qtvb 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.
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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。# {' M% l# c+ S) e2 o
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