本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 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。/ E6 v* i. F7 V7 f, U
) n r% P3 N- P# J5.39.217.76If you are not a Physics person, read on and learn a fact of physics.
b& f. F, Y2 s公仔箱論壇AMAZING!
6 j1 B, z* W6 w/ D* u" S' }( n公仔箱論壇tvb now,tvbnow,bttvb* p- q5 f/ i2 {& ]" w
Even after you see it, it is still hard to believe!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。$ L4 O' C9 m- [) d* A0 v1 F
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 J. ^+ c* j( e! _
tvb now,tvbnow,bttvb1 \9 X5 `3 H, p- }9 o: r1 N1 K. \
Magdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering!
3 W. u9 e D6 |( h0 b8 O; Dtvb now,tvbnow,bttvbThis 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。& W9 D3 ?- R! b g8 R
It is located in the city of Magdeburg, near Berlin.tvb now,tvbnow,bttvb) ]& F' {1 ?$ w6 ^
( }6 g7 T5 U% F ~7 ]6 {8 B$ _0 itvb now,tvbnow,bttvbThe photo was taken on the day of inauguration.
8 p) j% O/ W, y) G$ ?" t5 p公仔箱論壇To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists.( C% Q% j) Z6 a9 Y
5.39.217.76; Z3 C. ^1 v* x4 m8 v9 A% y+ ^
Question:tvb now,tvbnow,bttvb( k3 K% d. h& g) t4 H4 m& w5 L" \
, |; U; x5 g2 i3 Rtvb now,tvbnow,bttvbDid that bridge have to be designed to withstand the additional weight of ship and barge traffic,
/ Y' W! y! \) f) a5 Z' _tvb now,tvbnow,bttvbOr 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。) b" ~1 l5 K0 l# Z
5 c4 O. {# c0 TAnswer:tvb now,tvbnow,bttvb! W# D( y( [% W& b; I7 Q+ Z! @0 U! _
tvb now,tvbnow,bttvb! r0 ^6 @: P: ]0 Q7 w9 H3 @
It only needs to be designed to withstand the weight of the water!
! K- V6 W) [# x6 y0 q- pTVBNOW 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
^# {' V3 f8 ttvb now,tvbnow,bttvb
# D0 ]9 j! l' m' jTVBNOW 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,bttvb2 I- Q; P; ?" N; w8 M0 l
The Incredible Magdeburg Water Bridge in Germany
9 ?7 N) ]' D* a5.39.217.76The 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.
( O1 h( ?# N% @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。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. 公仔箱論壇) K5 z2 [6 N5 c. L! {4 ?
4 P( f! R+ y9 [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.
( _2 U: M' A) Q. t9 p
$ W' s8 M1 O! _: l1 d4 B) h2 |tvb now,tvbnow,bttvbTVBNOW 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。6 Y8 S5 {, z# Z; D+ ^
# p$ _# J" t9 ITVBNOW 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 ~" S& g- [1 J7 o( {7 X- J' @. C' g6 a1 G5 ?
7 X) p: @) s8 r* K+ x公仔箱論壇
2 ` b9 X. r, A' b3 [5.39.217.76
7 |0 W. |: [% C0 h7 R5.39.217.76
: \8 ` @' z' {- m9 A7 |5.39.217.76 |
發表於 2011-10-2 10:09 PM
| 
發表於 2011-10-4 11:33 AM
| 
公仔箱論壇+ @- N1 U8 g$ W
發表於 2011-10-15 09:35 PM
|