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 tvb now,tvbnow,bttvb0 _2 c5 J4 \$ {
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If you are not a Physics person, read on and learn a fact of physics. * ~3 n( A# ]0 L) i1 o+ p& T6 B- |- B
AMAZING! % [% a" |) W l, g* m 5.39.217.77:8898, v, i8 L, ]' a6 s# H
Even after you see it, it is still hard to believe! 1 c' h# v' r- G[attach]1486499[/attach] 2 E; Z2 F6 s! R: y1 F) Y0 y . B* ^1 V3 V. ?1 W+ VMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! + P+ q' ?: a0 R- B5 v/ x
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. , T1 k0 N, `2 d8 j0 Z公仔箱論壇It is located in the city of Magdeburg, near Berlin.4 Y9 N# X$ \* U1 c* r. t3 n5 [4 O
2 r4 }6 ~ M0 p. Y" K/ x. ~ o公仔箱論壇The photo was taken on the day of inauguration.公仔箱論壇1 R6 O* \, U- L) R+ X4 D
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. ; E8 v y2 q" \+ ^4 \tvb now,tvbnow,bttvb 2 R7 u8 s8 C# h; A- _! j a公仔箱論壇Question: ) n& `8 u3 {# q& K ! {, j3 y4 i. M: C6 E2 w( ~5 ~- Y0 X h5.39.217.77:8898Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, ) v4 u' Y: r) |" o# {" S公仔箱論壇Or just the weight of the water? 公仔箱論壇$ B5 r$ ]6 |+ t8 W1 v( ~' V
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It only needs to be designed to withstand the weight of the water! . W( s c& k* gtvb 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公仔箱論壇# x% H& ~; C/ X% G$ y, V 4 p+ @& b. N5 o! J5 f. e5.39.217.77:88983 f4 u* o; W) x9 Z/ H ^$ I The Incredible Magdeburg Water Bridge in Germany 4 A) u& ^/ O: ~9 `3 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 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. * e$ H W$ ?& H& k- b5 a/ DThe 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. : l$ y0 @5 }' g6 ^4 U V: Y. U公仔箱論壇4 v8 s1 L- E9 W" J" v, J
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. 9 a1 [2 I9 Z/ Htvb now,tvbnow,bttvb. S* e l' ` h% h* I* A
