本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
7 ~( e$ x7 x9 J9 f0 r2 @tvb now,tvbnow,bttvb公仔箱論壇8 d5 W) x: @; Q! w b F5 L9 ~( m7 M; ~
If you are not a Physics person, read on and learn a fact of physics.
, c6 }1 I3 x6 t: B/ }7 }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。AMAZING! 0 F+ \, \0 E9 A8 ?5 n5 n! P
) Y t9 q/ f0 y0 D) s& i: h) ?% |
Even after you see it, it is still hard to believe!
4 N' W n7 _+ N: I
) z0 o, k5 {, Z" j, w0 }
3 i% B- `6 O1 @& ~. t5 q( n# g6 `Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:8898% e: o' `4 D: ` F" l1 n
This is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 5.39.217.77:8898. s2 I8 p- X% P. d2 c5 ~
It is located in the city of Magdeburg, near Berlin.
) m/ ]6 @2 z9 I5 g$ q& z6 Htvb now,tvbnow,bttvb0 c6 D+ b# M% t1 }
The photo was taken on the day of inauguration. A8 N, R. V5 {* I/ H# n. C; X
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.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。/ ?. R/ J# T5 m# q/ A2 h& a, V
/ C9 j2 C @. V% T2 t5.39.217.77:8898Question: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。 `: E8 h7 n. O
tvb now,tvbnow,bttvb! D2 V& E E& a5 X* U
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
! T7 v5 h9 K3 ]0 m8 A) \9 i公仔箱論壇Or just the weight of the water?
& V* A: c( e$ `4 t4 r/ e- e公仔箱論壇* x! w( _9 P" w3 j- J( {
Answer:
3 o6 ?% x% b l公仔箱論壇5.39.217.77:8898. i, X1 _9 m* F9 t/ P
It only needs to be designed to withstand the weight of the water! 公仔箱論壇- m$ e* E, V+ K8 s" _
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
h9 q: \! Q6 ?, D
G) U6 d2 _3 Ptvb now,tvbnow,bttvb
. ?" D+ m; I/ T1 l- @, ftvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany
2 l' W) o6 g2 {+ V X- ZThe 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.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。0 v6 u( ^& i* R) L8 c3 K- O2 ^) t
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.
' w' N! S' h, M a) e8 Ftvb now,tvbnow,bttvb
# m2 w6 u* [5 Z7 C7 J公仔箱論壇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. & c& a- m. s# C. I7 V' Y
/ o! U) Q; S' p) E3 L& H0 P5.39.217.77:8898TVBNOW 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 E7 b2 [$ A; M( ?' I* x, T) O) B
s! X9 F$ j7 w. A
2 B1 N4 N# F2 V7 j' S, Itvb now,tvbnow,bttvb! j) r) X$ V, X: I1 K
6 |1 s& f& {0 T0 u7 |4 D8 K, |tvb now,tvbnow,bttvb- F# G" P/ T/ v' T
/ H1 Q2 T& h: V/ B! K% V1 E公仔箱論壇公仔箱論壇+ H& E6 p; ]# j8 {) G" A% R
|
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
發表於 2011-10-15 09:35 PM
|