本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
7 b1 t) Z2 k# K0 N$ N4 N/ d公仔箱論壇
8 \( W+ ?& b* U6 i! s6 X' eIf you are not a Physics person, read on and learn a fact of physics. 1 q" J0 ^, A& E) ]' s
AMAZING! 5.39.217.768 z. h3 L* G Q4 Z
/ O! M' l+ S2 P; m8 ]2 a6 F7 j# m2 o5.39.217.76Even after you see it, it is still hard to believe!tvb now,tvbnow,bttvb' g4 Y2 A# h: h& @7 p
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4 H2 @- v' n! P- XMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
0 u9 S- ?8 w: ]( u" M R: ZThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 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。! N. M2 c3 R' H2 _
It is located in the city of Magdeburg, near Berlin.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。 b$ |+ w" v! i$ H( b- W( K. `+ n
- ?: Y( N3 Q$ @ }, I" VThe photo was taken on the day of inauguration.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。, d9 Y$ [/ {% {+ T A
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.5.39.217.76. b% \4 Q! R$ I! y# l& G
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 P' a5 ^+ H" K
Question:公仔箱論壇6 W4 }+ Y9 i3 k/ Y1 H$ r: d
& L0 ?; G+ m B7 e1 N- C8 J5.39.217.76Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
# C. w9 }& b" l" t. H t5.39.217.76Or just the weight of the water?
. P8 m* V _& T3 @, N, d) lTVBNOW 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。; z7 }8 N" ^+ |" v: @" z" Z
Answer:tvb now,tvbnow,bttvb* E5 [; A, a4 w6 _# w
/ b$ S( D% g8 i* L; m2 k: `公仔箱論壇It only needs to be designed to withstand the weight of the water!
' l5 m+ W2 l5 |: LTVBNOW 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。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 U6 o1 X: I/ y; m' c, B5 A公仔箱論壇: Y) D9 R2 |; o& ?2 E/ [
! A6 h. a F; Y4 x5.39.217.76The Incredible Magdeburg Water Bridge in Germany
3 ?" x2 [% _7 A9 K# e8 tThe 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) z0 X' @ d8 M1 Z, Y, j( T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. 5.39.217.760 y' u1 O \ d
N$ n) ] u {& e% SConstruction 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.
1 i& E+ H8 N, Z m( G Ltvb now,tvbnow,bttvb" u# m6 P( D: v G) E
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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。$ ^' Z1 r3 W' Z' U$ P
; y/ l; T! L2 X" W8 B) |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。
z( I% d( Y! J+ f) P4 Atvb now,tvbnow,bttvb
& `4 D) ^; N" J- E) K! } ETVBNOW 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,bttvb, G8 z# \" `/ H, h+ ]6 i) ~
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