Bridge over water

Mike Sommer · 06-28-2009, 06:37 PM

Have you ever seen a Water Bridge over a river?.......

Even after you see it, it is still hard to believe!
Water Bridge in Germany . What a feat!
Six years, 500 million euros, 918 meters long.......now this is engineering!
This is a channel-bridge over the River Elbe and joins the former East and West Germany ,
as part of the unification project. It is located in the city of Magdeburg , near Berlin .
The photo was taken on the day of inauguration.

To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists:

Did that bridge have to be designed to withstand the additional weight of ship and barge traffic,
or just the weight of the water?

Answer:
It only needs to be designed to withstand the weight of the water!
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.

JoeActor · 06-28-2009, 07:06 PM

Science!

Fascinating achievement - thanks Mike,
Joe

John Bigl · 06-28-2009, 08:02 PM

Lee Gordon · 06-29-2009, 01:34 AM

Not only have I seen one, I've been on one. They're called viaducts and they've been around for hundreds of years. In 1985 my family rented a canal barge in the West Midlands of England and spent a week cruising around. Our journey included traveling under many stone bridges and a few stone viaducts. I wish I had a picture of a boat in the viaduct above us as our boat passed beneath but I can't find one. However, I shot this sequence of pictures from the deck of our boat as we passed over a couple of roads.

06-28-2009, 06:37 PM	#1 (permalink)
Mike Sommer User Join Date: Dec 2008 Location: Los Angeles Posts: 1,164	Bridge over water Have you ever seen a Water Bridge over a river?....... Even after you see it, it is still hard to believe! Water Bridge in Germany . What a feat! Six years, 500 million euros, 918 meters long.......now this is engineering! This is a channel-bridge over the River Elbe and joins the former East and West Germany , as part of the unification project. It is located in the city of Magdeburg , near Berlin . The photo was taken on the day of inauguration. To those who appreciate engineering projects, here's a puzzle for you armchair engineers and physicists: Did that bridge have to be designed to withstand the additional weight of ship and barge traffic, or just the weight of the water? Answer: It only needs to be designed to withstand the weight of the water! 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.

06-28-2009, 08:02 PM	#3 (permalink)
John Bigl ancora imparo Join Date: Aug 2007 Location: the puckerbrush of new hampshire, usa Posts: 655	WOW __________________ "the woods would be very silent if no birds sang except those that sang best"

06-29-2009, 01:34 AM	#4 (permalink)
Lee Gordon Voice Over Professional Join Date: Aug 2007 Location: West Hartford, CT, USA Posts: 939	Not only have I seen one, I've been on one. They're called viaducts and they've been around for hundreds of years. In 1985 my family rented a canal barge in the West Midlands of England and spent a week cruising around. Our journey included traveling under many stone bridges and a few stone viaducts. I wish I had a picture of a boat in the viaduct above us as our boat passed beneath but I can't find one. However, I shot this sequence of pictures from the deck of our boat as we passed over a couple of roads. __________________ For more voice over demos, my life story, client list, and other relevant information, please visit my website at www.leegordonproductions.com

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06-28-2009, 07:06 PM	#2 (permalink)
JoeActor Administrator Join Date: Aug 2007 Location: Los Angeles, CA Posts: 2,911	Science! Fascinating achievement - thanks Mike, Joe