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 }8 l) ~, p. o9 l0 J$ \. L
: F' M* v4 i# D+ x公仔箱論壇If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇# \, | `3 J7 r
AMAZING! - G6 t( H9 W: V* ]) [5.39.217.77:8898 3 K& k" m0 [ L% Z' F7 ^; j/ Ftvb now,tvbnow,bttvbEven after you see it, it is still hard to believe! 2 `; r% W8 h! w5 _6 a[attach]1486499[/attach]6 @" r3 @' R$ I. j* Y
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。8 N4 m& I* z* {6 [/ ?$ B
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ! L& i7 w* E+ z1 m4 w公仔箱論壇This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. + l- U8 |' X5 W1 l( Y" E5.39.217.77:8898It is located in the city of Magdeburg, near Berlin.. r. j9 E' P" g/ ?& r
1 J# r, ?9 H4 w3 r, f! v$ o! F5.39.217.77:8898The photo was taken on the day of inauguration. 1 }# d! S# O. g! r. qtvb now,tvbnow,bttvbTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. - Z6 `, Y4 V# f& {2 i: T$ }" B. Qtvb now,tvbnow,bttvb& N& n) o' `- [
Question:5.39.217.77:88986 B; z* L& c6 y# r9 V# ]8 I; H" F8 S
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Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb8 h7 l" C$ s! i( a, s! N5 d5 D
Or just the weight of the water? 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。* `. v+ z+ \1 S! H# U
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Answer: + ?: H/ u6 N, t- X+ G! y1 k 7 I; l \" E3 l1 X8 J8 _It only needs to be designed to withstand the weight of the water! / c2 f* p- l; i& Z4 o2 ]3 u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 loaded 2 |( Z3 j2 ]2 Z" o5.39.217.77:8898- ?! F, H. O+ E
( h1 [" C$ ?5 X k' d$ |% x5 g6 @' ] u# U5.39.217.77:8898The Incredible Magdeburg Water Bridge in Germany + W+ y3 h+ b7 }0 P0 DTVBNOW 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. " g& E7 f7 b I7 n+ x公仔箱論壇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. 5.39.217.77:8898; ^. Z4 Y( u( M$ z7 x
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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. 8 H" E' {) w' d+ d公仔箱論壇 0 {/ F7 N. b; K, r0 ?1 A$ E, H2 D5.39.217.77:8898 ! N0 R) H$ z! s+ n/ Wtvb now,tvbnow,bttvb[attach]1486500[/attach] * W7 K9 p9 ~" _2 P% l& D _- |5.39.217.77:8898[attach]1486501[/attach] 5 f0 m! h) P9 I+ _/ H6 Z) N( ?+ q[attach]1486502[/attach]公仔箱論壇; f: m5 |' o) @3 i1 q4 h% k [attach]1486503[/attach]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, o+ [2 b. I& u$ j( G( ~ [attach]1486504[/attach] & f0 ]) H2 U/ V; c# d( @+ ^) 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。[attach]1486505[/attach]tvb now,tvbnow,bttvb7 X/ B: B: r* b* z( z- V7 k
tvb now,tvbnow,bttvb( l0 N# y" w+ T9 |' Y4 M 作者: busyfun 時間: 2011-10-4 11:33 AM
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