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 ; x6 o2 g# u, S2 g% V+ b1 X
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If you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88989 I. S. V1 O0 Y$ @8 v4 _& b
AMAZING! * ]9 F" X- x( r# vtvb now,tvbnow,bttvb5.39.217.77:8898' b$ p/ R" ]3 o) Y) x3 `+ m
Even after you see it, it is still hard to believe! : g/ Z0 h, J$ o! o D$ C. G公仔箱論壇[attach]1486499[/attach] ! v# |" a# S0 M% Q4 c ftvb now,tvbnow,bttvbtvb now,tvbnow,bttvb$ W- |* i5 \6 n6 F5 r
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4 |$ _ U+ }& O: v6 x3 B! d5 ~
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. % \# L/ m; |3 L- B4 h% V" rIt is located in the city of Magdeburg, near Berlin. _3 |1 O4 d* c$ P& Z* } , M5 b; i. d3 U( N2 r公仔箱論壇The photo was taken on the day of inauguration.# C8 c+ `, S* V2 K* C3 T
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.3 }2 ?& o. l: q: k; F
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, 0 v- ` d6 `1 U) `5.39.217.77:8898Or just the weight of the water? / ^( a, Q1 c9 v$ U0 |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。tvb now,tvbnow,bttvb2 @% s/ G- D3 f. \
Answer:: G5 c: v+ i o8 S$ m7 V. U' u
3 `, y0 Z! R: v' D" q' e5.39.217.77:8898It only needs to be designed to withstand the weight of the water! 9 x- W, V6 ?! O: m0 L8 a* t2 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 & d+ C- w/ \( b5 |" H5.39.217.77:8898tvb now,tvbnow,bttvb4 d$ C! ~0 J4 k9 D# _# e$ p; A
5.39.217.77:88988 i% v4 q3 c% q+ _3 h3 } The Incredible Magdeburg Water Bridge in Germany # z' _' [, u4 ^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。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. ( i2 y# l' k& U; j1 NTVBNOW 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 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. ) H8 g: ^" v7 J% @公仔箱論壇5.39.217.77:8898- ]9 P9 \5 U! B$ Z/ |
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. 公仔箱論壇% V3 ?0 {& o; [( [
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。& }- l6 }5 \8 `4 J