本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
+ J8 z1 P+ n N4 G" `7 z1 Y: U5.39.217.76TVBNOW 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 }8 K# Q& b6 f* {, f' C) N, M
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇' E: B% w2 w2 F
AMAZING! 5.39.217.76, |( D% V0 a( S7 }
/ W B! l2 y ]$ ^( q4 gEven 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。- y5 Q# R$ { P7 S8 _& \
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5 R& j2 E1 `8 E' x4 R t2 Atvb now,tvbnow,bttvbMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
A1 u$ |& K1 O3 o1 E3 k: g3 xtvb now,tvbnow,bttvbThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
( g0 ?( A4 j7 d8 b9 n8 tIt is located in the city of Magdeburg, near Berlin.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。+ N! X9 w5 v: V% e( A# w" S
0 p, h- n% |, {5 j3 {( L5.39.217.76The photo was taken on the day of inauguration.9 Y6 K0 ?! x$ I* {0 N
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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D, ^4 Q* x0 V/ E! E3 ?! d& W* S5 Jtvb now,tvbnow,bttvbQuestion:公仔箱論壇, R; `( b" b1 q' `7 l; e3 P8 {
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
9 p* n% U, w" f8 t3 s2 nOr just the weight of the water? : |: Q- T6 P# e) F3 S, O
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Answer:
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( E4 \7 u; U6 Y7 Z- o. D+ v" Ytvb now,tvbnow,bttvbIt 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。$ |, K5 \# {$ ?& j( d C
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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" R9 u6 _' O& g6 {0 ~6 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。The Incredible Magdeburg Water Bridge in Germany
' M" b5 b3 Q3 Q. b1 Ftvb now,tvbnow,bttvbThe 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.tvb now,tvbnow,bttvb M( ~/ |$ Y7 `& H) r% q) \, W4 k* c
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.
" I4 B& n, |" R( a- `4 _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。9 q+ Q) L) E* K3 z
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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+ }7 `% ~! z& `, {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。公仔箱論壇6 @& y* N, m; w% c
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; |) o5 L: o' q: Z$ t' Ctvb 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。5 q- w! p0 g4 `3 v8 D( t2 L- r) n; H
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