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 $ V, Z" n0 }. j1 I4 g& X9 A ; G* s7 O7 l& f/ ~+ 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。If you are not a Physics person, read on and learn a fact of physics. ; B. M/ u) c& |1 }+ K5 ctvb now,tvbnow,bttvbAMAZING! ' b- U- B! {+ U: v * d3 u; @2 i# o# \( W7 _8 mEven after you see it, it is still hard to believe! % M4 s, I$ F6 r2 U' ~8 Ktvb now,tvbnow,bttvb[attach]1486499[/attach]4 s# _, A( s# j0 R
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 公仔箱論壇' a" h4 s) d. ^$ Q! W8 ~, e& ~
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 2 i0 r' U' @, a1 v' F; [0 `It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb6 _' P. H: J8 l
- d6 I, d2 S' R' }3 Ztvb now,tvbnow,bttvbThe photo was taken on the day of inauguration. ' ]0 \3 [1 N- o. ~" l# O1 U5.39.217.77:8898To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.公仔箱論壇. l% e2 ~2 p* A9 Y3 E( g
% D: c7 s0 q, X! A/ f6 @tvb now,tvbnow,bttvbQuestion:公仔箱論壇; q# c: j5 ~) }' ~1 Y, N
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 4 } n3 l8 l% D9 h5.39.217.77:8898Or just the weight of the water? 7 [: f; J: n7 x8 Y; X " D" p$ g* q" z' OAnswer: 7 X: ]' i8 \1 K h6 Y1 t9 A 4 i( N, S; f4 v6 C& t) J4 d公仔箱論壇It only needs to be designed to withstand the weight of the water! 1 ?+ X) w X! M7 @2 m/ H公仔箱論壇Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded5.39.217.77:8898 x, N- }$ P& p6 J ) e6 l2 `, l) Z; v6 \6 X; tTVBNOW 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 p- `4 W: I; z) n0 k The Incredible Magdeburg Water Bridge in Germany # ~8 h) M, R. S8 s* l( A7 nThe 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.公仔箱論壇! \3 g/ H. g) ?. ]& E# k
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. 8 s& x* u# h4 z' @% z9 K G& q公仔箱論壇 4 I- \6 K. [& F) {; x* r. D7 _) m7 V5.39.217.77:8898Construction 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. 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+ V3 ^& L" Y2 T
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。4 E2 v' d, A* M6 @. j, [