本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯
3 Y0 A' B# Z2 N3 R* ~. vTVBNOW 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。 h4 [% Q1 f! j7 H: Q
If you are not a Physics person, read on and learn a fact of physics. 公仔箱論壇/ R; P- V* Y/ y) u. ^! M3 i
AMAZING! 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。/ i x" j! Q2 S( E/ w
" Z2 Z6 p7 @4 U4 ?5 O; b3 k% C& A
Even after you see it, it is still hard to believe!
$ T4 D3 c/ M& r$ ]+ x- I" @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,bttvb1 l$ j" v; d9 h" |; _
tvb now,tvbnow,bttvb9 ` p( z; S( {
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
' m& T/ e% @& m V$ bThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. 公仔箱論壇/ z% e4 O+ l6 c# W
It is located in the city of Magdeburg, near Berlin.
* N' d* W) Y. `1 g) stvb now,tvbnow,bttvb
. p1 J% t1 ^2 ?7 [% i( Y9 Fwww2.tvboxnow.comThe photo was taken on the day of inauguration.
$ r! I( p0 {! \3 {4 {To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.
+ b; r+ |7 K+ V7 M5 ^% G0 ^: c
3 t, T5 c$ c: e公仔箱論壇Question: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。. x3 l" N4 v" l+ v/ j3 l+ G
/ t9 h, _0 k3 UDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,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。9 X; h. ~, A. x/ k- G9 J0 o: i6 A
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。- u7 C( d/ E2 Q
* w4 B$ F, a$ _* U/ N Etvb now,tvbnow,bttvbAnswer:8 B- i% d# r3 k0 f9 R" ]
/ s$ S8 A k: M1 X公仔箱論壇It only needs to be designed to withstand 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。: A% N; Y- H' T
Why? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded6 L: x/ ~; B7 R1 R3 H. T
, y# x* _1 F# H8 X1 ?
tvb now,tvbnow,bttvb$ N- ~7 W3 F% ^$ L6 O( v! E5 W
The Incredible Magdeburg Water Bridge in Germany
5 V0 P( S- L$ `5 Nwww2.tvboxnow.comThe 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.# A' ^5 d& X. [* ~- T$ H% }' C
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. , _4 K; G7 m% y3 @! ?- u
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 ^( t! G1 T9 G1 \
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0 E% i1 g1 q; N$ @+ M5 D* U8 s/ f
7 M9 _0 c7 o: O) o6 p9 d1 M
( T2 b! b( j0 ?7 V! Cwww2.tvboxnow.com公仔箱論壇7 w8 |# }* N8 `" I/ A1 B
- l" ^4 c4 i0 p! V/ c, Mwww2.tvboxnow.com
9 c6 d7 n1 g: @# M3 l# r. V0 Q( i8 e E5 c
H4 {- _) ~! g& l# t* w( Ktvb now,tvbnow,bttvb
( z4 `% m9 W1 g4 i' D2 V) Lwww2.tvboxnow.com
9 |0 a' B9 B) }9 U/ Mwww2.tvboxnow.com |
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
|