標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 / ]: ?$ N/ Y0 s2 P3 v3 k; I
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If you are not a Physics person, read on and learn a fact of physics. . V* T& ] a9 X# ^- ?9 j0 h; Atvb now,tvbnow,bttvbAMAZING! 2 z7 d. \ K! Z3 P0 E公仔箱論壇 ) i1 x) P+ Z2 h3 T4 TEven after you see it, it is still hard to believe! ) w( Z4 F6 a. _; _# t* g2 X( ]; Rtvb now,tvbnow,bttvb[attach]1486499[/attach]- L7 G$ b! J0 {1 X! n
6 U; Z$ j% Y8 T3 I5 F" pTVBNOW 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! tvb now,tvbnow,bttvb$ u1 U- o. l9 m, J0 [ T
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. - o) U9 B5 n1 b7 Y* [
It is located in the city of Magdeburg, near Berlin.公仔箱論壇6 L3 e, U4 f, D
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The photo was taken on the day of inauguration. & q) X9 r* p+ z8 ]6 I公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. 0 m( h; ^, U# d, s* c2 W 2 r: Z( o) b- w0 AQuestion:公仔箱論壇. p1 A' z8 n1 J( o: _, N( ]9 E* N1 l
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb: S& o9 J7 D6 ~0 q+ s: r1 k
Or just the weight of the water? " B6 z: ~6 z, L! i% t$ g/ e9 m. _* g8 a
Answer:4 i" @4 V7 U& w* \
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It only needs to be designed to withstand the weight of the water! : R' t. |) a: F% C' D9 |3 n
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 2 n$ w. c4 O$ f# d; X- v% q- v3 n5.39.217.77:8898TVBNOW 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。/ h) Y- S2 z' W f, O( y
7 }6 k# C3 q5 G4 o# o; ^& A8 G; r The Incredible Magdeburg Water Bridge in Germany5.39.217.77:88986 g0 j8 W; d! Z9 `2 N5 ~8 Y) B
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. 3 R# z. }' X) R2 J9 K5.39.217.77:8898The 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. 5 K7 w; R* E; Etvb now,tvbnow,bttvb 6 ]$ h# f' H3 j5 t2 Y7 `+ Utvb 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. 5.39.217.77:8898+ t6 H1 B: p, r, Z
8 C+ P/ S9 V7 kTVBNOW 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) v' B# C& f! f" `. O+ H( z( N' f( K. O [attach]1486500[/attach] ' V+ h8 V7 s# \2 ]/ X5.39.217.77:8898[attach]1486501[/attach] $ n j/ q; g7 A* S' L% s+ ]: a% D[attach]1486502[/attach]公仔箱論壇( Z9 ^" N# t4 a, K7 ^) T# A [attach]1486503[/attach]5.39.217.77:8898% W8 Q- X7 [4 T% r, p2 `6 L6 S [attach]1486504[/attach] 8 E! ?. L3 k7 J( b3 ^. U9 g[attach]1486505[/attach] 6 g# N* g5 G( I" v5 u " M& i9 B# M1 b! F0 }5.39.217.77:8898作者: busyfun 時間: 2011-10-4 11:33 AM
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