1 E! C) e9 E3 t5 F& v( X* l5.39.217.77:8898If you are not a Physics person, read on and learn a fact of physics. 6 \# d( [0 ?1 Q) p3 g9 p1 M( Y7 m
AMAZING! / K8 p+ F. e% w5 l! U' g( F4 o x . B) P, y$ T1 T6 Qtvb now,tvbnow,bttvbEven after you see it, it is still hard to believe! 5 Z* r9 }2 u9 G @2 x6 G5.39.217.77:8898[attach]1486499[/attach]6 R v0 k2 \: P$ q9 ^
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Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! % |0 u9 \ Z* q/ }# I
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 3 r+ f. i n }- O; U g& [& e
It is located in the city of Magdeburg, near Berlin. 3 y8 i. E2 V/ U$ A- |tvb now,tvbnow,bttvb `+ e# V: k: d" a+ c0 H% Atvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.5.39.217.77:8898/ m) q4 }0 A$ B3 Y5 _# X" ~5 A
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. x' R( d' V" A5 H公仔箱論壇5.39.217.77:88985 Z" O; @) a3 o: Y
Question: " j6 }3 B; ~1 c6 T$ qTVBNOW 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。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。* J+ |7 R! m1 @6 R6 Z
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, & J0 ]/ {( U1 H" o4 TOr just the weight of the water? . K( T b0 i* Y$ J g4 o, }8 ]2 X* H# HAnswer:5.39.217.77:88981 c9 {' @/ N4 Q! C w
) n% f* }* y" d1 M. o* w9 ^ Wtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! $ R6 Y' S$ F8 ]3 s0 Z+ B% E
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$ {6 F- I) H) }3 x9 s8 T 2 h3 q* J" T- l/ C
; S z6 D3 G* S4 B& H/ ?+ G$ ]1 }2 ~ The Incredible Magdeburg Water Bridge in Germany 8 n) I5 I% }5 K+ [" Ftvb now,tvbnow,bttvbThe 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,bttvb" U: C/ Q1 H8 z% D* @: L
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. 5 `. @0 @/ C# y& a5 v; v q5 P: gTVBNOW 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。 , p# L4 j) v. M; r- X" { gTVBNOW 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。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. 4 W' E0 @) R8 z公仔箱論壇) \ o8 w# L3 e& h$ [* \1 O3 A. J
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。: s2 b2 x# }: J5 K6 S9 q; u [attach]1486500[/attach] + m4 K* ?# c3 e7 z: L4 M5.39.217.77:8898[attach]1486501[/attach] ( T2 e. o+ }& D$ E[attach]1486502[/attach]tvb now,tvbnow,bttvb- t% f5 G2 Y# ] [attach]1486503[/attach] ( j, l* @9 L6 K7 M! |( E# I9 Itvb now,tvbnow,bttvb[attach]1486504[/attach]公仔箱論壇, |8 ]1 E; l6 J1 H [attach]1486505[/attach]公仔箱論壇# n" {! B- n+ \2 q! h% A7 y4 e
tvb now,tvbnow,bttvb/ b2 M J+ }& D! r x) U6 ? 作者: busyfun 時間: 2011-10-4 11:33 AM
