本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
/ Y( \1 G4 B) k7 b$ zTVBNOW 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( N) {5 s7 N O l& X7 W/ qIf you are not a Physics person, read on and learn a fact of physics.
* @8 e+ T0 H% n3 w" G q公仔箱論壇AMAZING! 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。( x& a* A' c2 I! q5 \ n
! f, w& W2 g" o: p5.39.217.76Even after you see it, it is still hard to believe!8 ^; d5 i9 A& t, u
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 o0 T8 @. m' C: `! Z" a
. H B2 n3 N2 G# f6 F2 AMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.76) F, x0 y' E; w, r: r0 [
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project.
2 `" x8 R; @% Q( ~tvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin.) N1 D" T/ R" Q, ? }/ m. v" M
# U; D _3 p) |! S1 `The photo was taken on the day of inauguration.2 A# [" g5 V& k
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
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Question:tvb now,tvbnow,bttvb3 x; R/ `1 Y ^5 P
tvb now,tvbnow,bttvb/ b. t% E7 A& N& o
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# m2 g) b# p+ F. 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。Or just the weight of the water? tvb now,tvbnow,bttvb- p8 t' g4 ]2 v! ~% {3 Y4 \6 [
3 g) \4 j8 E! q0 Mtvb now,tvbnow,bttvbAnswer:
9 K" g- X# N/ f2 c5.39.217.76TVBNOW 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。1 A: D2 X$ J* e% z4 e# W8 o& ^( m
It only needs to be designed to withstand the weight of the water!
) t5 O C/ L2 U" |9 R, _5 @tvb now,tvbnow,bttvbWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded
* x w$ p5 o+ A1 `: E7 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。1 l# s3 R' F! m( L3 j# o
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 H3 P$ ^5 V4 f$ |2 h% {% p/ u
The Incredible Magdeburg Water Bridge in Germanytvb now,tvbnow,bttvb+ m( x: S6 ~4 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.tvb now,tvbnow,bttvb2 {6 C) i0 J. m0 ~
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.
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& R) w) N% n3 `' [& S公仔箱論壇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. 5.39.217.76- L( j9 G1 P/ l2 I2 e) O( ]* q, A
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/ [" ]% Y% l/ k8 I, v" H$ f8 k5.39.217.76TVBNOW 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。/ F$ N! q) S n( U) e; N' d. @
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