本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
, }+ P$ S$ K% s( E$ A4 }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% L3 A! u a1 F0 j9 S6 SIf you are not a Physics person, read on and learn a fact of physics. 5.39.217.77:88983 d, v% A5 v6 U' Z5 H
AMAZING!
- p" z+ s6 k! @: r; MTVBNOW 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。公仔箱論壇( P+ }8 m- r5 ?" N4 B3 B8 o
Even after you see it, it is still hard to believe!
2 C u q9 b! Y- l公仔箱論壇8 c- o$ ^" F2 _( }8 N
* _9 }. ]- V5 m! f& C' `Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! 5.39.217.77:88982 t" L+ z5 \+ I4 j
This 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。' h( v. ^. B5 b, P2 ]; T
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb0 ]7 Y C6 W' ]& D# \9 [/ o
; V( V/ f8 n6 Q4 F
The photo was taken on the day of inauguration.
s+ ~; ]$ \0 X0 LTo those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
/ C: z) T/ m2 n% _& [
# u7 {# A* t' ?$ j5 p% Q" X& `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。Question:公仔箱論壇! n" S1 I. `* T" a9 S" n, n- O
' a0 I. ^, D" m; E+ p公仔箱論壇Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb2 Z' G0 L' F$ k# J- Z$ H
Or just the weight of the water?
& f7 W, E7 y" F; STVBNOW 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。公仔箱論壇/ Q& h1 C# s+ ~7 ^4 S: ?
Answer:
# a4 K& T6 X' a/ p+ ntvb now,tvbnow,bttvb
+ X- S) L9 x( T* W) k0 `8 l; n3 rtvb now,tvbnow,bttvbIt only needs to be designed to withstand the weight of the water! 公仔箱論壇6 n F @. Y( K) s3 ^
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
4 t& O$ \1 n. j- v$ [3 ATVBNOW 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。
: H' }" h% r" m( I2 }tvb now,tvbnow,bttvb5 f* Q# i8 F& j5 Q- K& A) }% F' k
The Incredible Magdeburg Water Bridge in Germany
$ ^* F+ K) _1 I4 l3 k% S {2 \tvb 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.5 o5 l4 x: L! |; f) A2 p8 h
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.
1 [6 g: ~6 {& l% {1 F" Z1 q
8 V* P8 \1 O& x' \! ]0 G( U) C* f$ Qtvb now,tvbnow,bttvbConstruction 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. 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。: A p( e2 F; c, E
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。2 T" `, T' j+ B4 F. G' U
5.39.217.77:8898# B& h1 f: ]# ]0 R5 G6 O, ^
* _6 m+ U/ E* w: I* a9 x7 ]" S/ Ntvb now,tvbnow,bttvb4 Z" k2 y. n" o! K t# B5 x
; K8 y/ @ C) O; Y* x, W5.39.217.77:88985.39.217.77:88983 E( M( y# I9 x' }- L, G$ G" r
( t# ~- ~: V: k: a5 C7 btvb now,tvbnow,bttvb% X4 X3 S# Y+ p7 m* \4 X
( Z2 D, }% E5 j" b- [+ M" ]# g5 }
|
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
0 G9 _- N* F( s+ f( T
發表於 2011-10-15 09:35 PM
|