標題: EVER SEEN A RIVER OVER A RIVER? [打印本頁] 作者: lilitan008 時間: 2011-10-2 10:09 PM 標題: EVER SEEN A RIVER OVER A RIVER?
本帖最後由 lilitan008 於 2011-10-3 12:57 PM 編輯 0 y; }) R& d( F& R% Etvb now,tvbnow,bttvbtvb now,tvbnow,bttvb0 Y9 e+ E, B' ^' @8 ^: n2 v- K
If you are not a Physics person, read on and learn a fact of physics. , D; n; I$ q0 c3 s5 |/ y( z5 U( |tvb now,tvbnow,bttvbAMAZING! tvb now,tvbnow,bttvb2 M0 z' G: l6 i% R" u ) n1 q! J. _1 ^5 \7 W( z8 g5.39.217.77:8898Even after you see it, it is still hard to believe! ) \5 N9 j6 n$ c! I" _1 I% g[attach]1486499[/attach] ) O+ b. `$ Z ~) B6 R + i2 m- I5 l y6 LMagdeburg Water Bridge in Germany What a feat! Six years, 500 million euros, 918 meters long. Now this is engineering! ; a4 R1 E* u# z* EThis is a channel-bridge over the River Elbe and joins the former East and West Germany as part of the unification project. - Q7 y% F, [2 p. }: O+ @) t
It is located in the city of Magdeburg, near Berlin. 3 n+ A( p5 K0 b: D9 D4 E5.39.217.77:8898 ; f8 ^$ m/ N! \! M) Q公仔箱論壇The photo was taken on the day of inauguration.8 H/ K& l; W; \/ U0 Q; k9 U- l# @
To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists. $ K) A9 _# b+ T4 _2 e- C% ]9 c Z公仔箱論壇/ e+ I) w2 i$ d! g8 |% N7 w3 i' s
Question: & t; C$ ?$ Y0 s$ ^tvb now,tvbnow,bttvbtvb now,tvbnow,bttvb. b( Z. J- `( [: K ^5 b8 @
Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,tvb now,tvbnow,bttvb4 R$ `' `+ x( r/ u( H9 B( B# A+ ]
Or just the weight of the water? 公仔箱論壇3 q8 P/ r' i" m* F; n3 a5 v7 u
5.39.217.77:88987 d* [/ {, k# i6 x# z
Answer:5.39.217.77:88986 ^8 I4 u, f2 Q4 i
1 O9 x/ z2 n0 D K
It only needs to be designed to withstand the weight of the water! ^4 G- j1 N1 ~3 `& l9 QWhy? A ship always displaces an amount of water that weighs the same as the ship, regardless of how heavily a ship may be loaded* o* h2 |2 ~8 _ # i; R$ u( e5 k% ?2 ^5.39.217.77:8898 2 S+ Q3 O3 s9 h, G2 S' e. utvb now,tvbnow,bttvbThe Incredible Magdeburg Water Bridge in Germany 9 s0 ]# ?. u( F9 z; W, m( mThe 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.6 C3 p$ F' x$ z
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. / T3 N* M3 [2 r! r B8 @4 G: _ . _ { u* r0 D9 `! zConstruction 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. " B; V. W5 a0 `% z7 l) o5.39.217.77:8898 & H/ W$ Y8 T& `- v u- S4 I0 ] ! O) I, n0 [; ^# Y7 f公仔箱論壇[attach]1486500[/attach] 9 s0 n0 k0 O+ x: N3 {6 e" g公仔箱論壇[attach]1486501[/attach]tvb now,tvbnow,bttvb9 \' i3 B+ H5 a1 l5 G, e! p2 c [attach]1486502[/attach] G$ [+ V$ h9 {& E5 B. B9 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。[attach]1486503[/attach] ; j0 Q: {3 H* L6 C5 g# P* C公仔箱論壇[attach]1486504[/attach] ^3 `9 `* s; O/ Z5.39.217.77:8898[attach]1486505[/attach]* M& \8 Q) f$ [8 K8 p
2 t. r' A# p0 G* S, Z$ X# e# stvb now,tvbnow,bttvb作者: busyfun 時間: 2011-10-4 11:33 AM
這宏偉壯觀、傲視寰宇的工程傑作早在 1919 年工程師們即已提出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。/ D8 G- B" F" p$ F; ?! ?
連通兩條水道的最初構思，而羅騰湖 Rothensee 升船機及大橋錨碇3 s& _( G! I% T1 J5 k
也於 1938 年安裝就位，但在二次大戰期間，建設工程被推遲。公仔箱論壇. O; S3 i, Q6 |! x7 ?/ X
隨後的冷戰時期，德國分裂，該專案被東德政府無限期地擱置下來。 % }3 u: W. h. D% j, l# Y5.39.217.77:8898德國重新統一後，隨著道路交通重大工程規劃的編制，水橋再次成為一個優先專案。 ) N6 B7 B- A2 v! ~於1997年開始建造，經過 6 年，耗資 5 億歐元，2.4 萬噸鋼材和 6.8 萬 : K- y% e& `9 V6 e+ e9 b; j" GTVBNOW 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。立方公尺混凝土，完成了巨大的水橋，連接柏林的內陸港與萊茵河沿岸港口。 3 L' N+ @; E+ i7 t
2003 年正式通航，水橋全長 918 公尺。 而 2003 年之前，在米德蘭運河和公仔箱論壇; q) N5 I, D l; b+ g
易北河-哈威爾運河之間運行的船舶不得不繞道 12 公里通過。作者: swyip21 時間: 2011-10-7 10:19 AM
多谢您的分享！作者: Mimisan 時間: 2011-10-12 11:01 AM
first time heard & saw it, thanks for sharing, thanks tvboxnow!!作者: pepperjellabies 時間: 2011-10-15 09:35 PM
