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 9 ?! |4 Q6 P; Z+ q+ Y$ btvb now,tvbnow,bttvb 5 ^) m& l% B9 M! P# O, }: oIf you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇2 j' M! _; t$ n
AMAZING! 3 _; a8 v( s2 J7 Y3 e2 f" j+ q tvb now,tvbnow,bttvb( Y3 z2 s& `% j
Even after you see it, it is still hard to believe!公仔箱論壇' h' M9 U0 \2 b [attach]1486499[/attach] U( D {6 [$ h2 D# O
; E! b- u; N( a$ W7 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。Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! & c1 A7 o) {5 N/ r% k& @This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. , I3 c7 R; Z. p. itvb now,tvbnow,bttvbIt is located in the city of Magdeburg, near Berlin. ( @, \: n1 ` }9 ^ E1 RTVBNOW 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, O; _) } Z, P. y+ z4 ~; P
The photo was taken on the day of inauguration. ! q' G/ n2 F% W: P7 S; x$ }To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.$ k/ L" Y, G4 X! g
0 t$ e% o$ v: N, e" }9 D! _* N公仔箱論壇Question: / z9 g% L! }7 D公仔箱論壇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。* I& {) a: V2 E1 l, ~+ U
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb5 W E* C: [: G( V" ^* k
Or just the weight of the water? tvboxnow.com5 J9 R$ K6 |( m6 u7 P
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Answer: ! E: \* [3 h B$ j: i4 m' Htvb now,tvbnow,bttvb [" w- q3 [+ q$ X; ?公仔箱論壇It only needs to be designed to withstand the weight of the water! $ x' W) R3 j- M. ~& M
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公仔箱論壇. ^, \* l' k) _' 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。& Z2 ]" R6 x( v, r% u
tvboxnow.com! i5 F+ ?/ w; n! E" ] The Incredible Magdeburg Water Bridge in Germany % O7 H$ e' L5 p& a4 v. x {% FThe 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., U# |5 A* d" b( a, h8 r
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. . Q' q, q5 P ntvboxnow.com公仔箱論壇$ n- v+ T! r% l3 g# P
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. tvboxnow.com+ C0 P8 \% Q) l( T* I& k
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0 i$ L9 I( T9 u' Y0 \tvb now,tvbnow,bttvb[attach]1486500[/attach]tvboxnow.com. H/ ^: t+ d) L1 X Z" O' S! l [attach]1486501[/attach]; }- ~; r) c2 H$ O [attach]1486502[/attach]tvb now,tvbnow,bttvb- t/ Q6 {9 v: `6 o* h [attach]1486503[/attach] / x! y) |' S- C7 L9 w8 Z& _5 I) Stvboxnow.com[attach]1486504[/attach] : ?! F" `9 u- m# v6 P' k" c* ntvb now,tvbnow,bttvb[attach]1486505[/attach], ?5 s( v `3 g( W
# V4 S* F: u3 c 作者: busyfun 時間: 2011-10-4 11:33 AM
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