本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 公仔箱論壇, P2 L+ z) I4 `( e0 r& q! K- A* r) x* K
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。5 Z* l+ x3 Q/ \+ C
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇9 |2 K/ X- V8 z$ n& |- n4 [+ X
AMAZING!
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# i# v0 {1 q {. cTVBNOW 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。Even after you see it, it is still hard to believe!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 C/ U1 K2 ?+ u
( @% ~- d, c& T, l& x) ]$ X8 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。- L# o5 Z" U. K4 x1 `! S
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! $ i7 u! U4 o/ A [, q* J
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。/ K$ X4 t$ [. M- ?8 a Z
It 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/ F* k1 O5 s* c- M* `: h
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇3 s) b# @. r0 J1 D. r
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。) ^3 e" U; I9 o' q0 }
Question:
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$ V2 N0 j$ Z1 F/ Etvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
; N1 ?1 g& B( T7 S1 @: ]- Y B公仔箱論壇Or just the weight of the water? tvb now,tvbnow,bttvb6 Q9 z1 L; z) m1 P) f9 a0 w2 |
u) X8 ]2 ]2 I6 {$ C; @tvb now,tvbnow,bttvbAnswer: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' ~& d( i2 ^: L; `+ A' d0 N
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It only needs to be designed to withstand the weight of the water!
6 k2 g" f: K/ ] PWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded3 k5 x$ v' f1 d- h" { t
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) P2 B$ S0 [ K) W" H+ E5.39.217.76The Incredible Magdeburg Water Bridge in GermanyTVBNOW 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。0 X% G8 C4 L( g1 @+ f9 F
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.
$ H" d3 _8 c3 M5.39.217.76The 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. ! i% }5 v% ]4 {3 e, W0 x0 I3 i
8 ^7 h L9 w, e w, ptvb 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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' ?; _; S. q( j x& 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。5 V/ y5 N# X% }6 E& \
tvb now,tvbnow,bttvb$ d$ H. v! n0 N& b3 F1 t! J: |
D9 q/ l+ i9 Q7 ~! |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。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。& f2 j3 u' g& y) P
. ^; B6 w7 F' ]9 g- wtvb now,tvbnow,bttvbTVBNOW 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。& R5 a0 V( ]1 \* m: Y( `
& t- W6 Q* Z3 U3 f$ \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。tvb now,tvbnow,bttvb! R5 I4 [" @) M9 K9 E
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