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Well, honey, back in the day, those folks in Chicago wanted to clean up their mess, so they dug a big ol' canal to reverse the flow of the river away from Lake Michigan. They basically said, "Sayonara, pollution!" and redirected the river like a boss. And that's how the Windy City ended up engineering the Chicago River to flow backwards.
What else can I help you with?
What are the gates for on Milwaukee Ave. at palatine road?
They are flood gates for the des plaines river.
Why are simple machines used?
they can help you like a pencil helps you write
What engineering strategy has been used to protect moritt?
One engineering strategy that has been used to protect coastlines from erosion is the construction of seawalls. Seawalls are vertical structures typically made of concrete or rock that are built along the shoreline to absorb and deflect the energy of incoming waves, reducing their erosive force on the coast. Seawalls can help prevent coastal flooding and erosion by providing a barrier between the sea and the land. However, it's important to consider the potential impacts of seawalls on coastal ecosystems and natural sediment transport processes when implementing this strategy.
Who was the Design Engineer of the lupu bridge?
Lupu Bridge arch joinsBy Jane Tian, Shanghai Star. 2002-10-10 The world's longest steel arch bridge will be in operation next year SHANGHAI has another rainbow across the Huangpu River. The last gap in the arch of the Lupu Bridge was successfully closed when a 6.8-metre-long section was lifted into place 100 metres above the water on October 7. With 2.2 billion yuan (US$266 million) of investment, the 3,900-metre-long bridge breaks the record for this type of bridge with its 550-metre-long main arch, 32 metres longer than that of the New Virginia Bridge in the United States. The main arch is made up of 27 sections connected synchronously from both sides of the bridge toward the centre. "The precise connection depends critically on the temperature and the wind velocity, which can be very difficult to handle but worth the pain for Chinese bridge builders,?Lin said. The joining was expected to have been completed in April but due to technical difficulties, the work was delayed till this week. The bridge has consumed more than 35,000 tons of steel and the next big job will be paving the roadway for traffic and installing horizontal cables to fasten the arch. The rest of the work will not be a problem as local builders are experienced in these aspects of bridge construction, Lin said. According to Hu Shide, an anti-seismic expert in Tongji University, the bridge, guarded with an advanced safety belt, can meet the challenge of an earthquake that happens once in 3,280 years. Vice-Mayor Han Zheng expects the bridge to be completed and in operation by May next year to relieve cross-river traffic congestion. "The bridge will also contribute to Shanghai's bid for World Expo 2010,?Han said. "If the bid is successful, some four square kilometres near the ends of the bridge will be turned into a venue.? Han also pointed out that Shanghai will have two more river-crossing projects next year: the Outer-Ring Road Tunnel to be finished by May and the Dalian Lu Tunnel to be in opened by the end of next year.---- Copyright by Shanghai Star.
How do you make a simple theodolite?
Making a simple theodolite: an activity for a measurement lessonFebruary 6, 2010Filed under tutorialsTags: 3rd grade, homeschool, math activities, measurementone responseA theodolite is a surveying instrument of unknown origin, but can be traced back to the 16th-century English mathematician Leonard Digges. This is info for you not the child.You will need:a piece of thick cardboarda plastic strawthread, or thin stringa small screwtapescissorsa rulertape measure for activityFollow these steps to make your theodolite:Cut a 6 x 6 inch square from the cardboardcut the square in half diagonallytape the straw to the diagonally cut edge of one of the trianglescut a 10″ pice of thread, and tie on end to the screwtape the other end of the thread to the triangle so that it hangs straight down along one of the 6″ edges.Your theodolite is ready to rock & roll. Not really, but is is ready to measure tall things. If you can find a straw as long as the diagonal side, then by all means allow the straw to run the entire length of the side. This was the longest straw I had.Using your new tool is simple. Follow these easy steps:find a tall object that you would like to measureraise your theodolite up to your eye, and look through the straw.find the top of your object through the strawmake sure your string with the screw on the end stays straight along the edge of your triangle.You must move backward or forward until the top of your object can be seen through the straw. The thread must stay in line with the edge of your triangle. It can not dangle forward, backward or to the side.Once you have found the correct position and can see the top of your object through the straw & the string is aligned with the edge of your triangle, mark your position on the ground. You have created an invisible triangle.After you have marked your position on the ground, measure the distance you are from the base of the object you are measuring using the tape measure.Now measure your own height.Add the distance you measured to your height. This is the height of your object.For instance, if the distance to the tree is 45 feet, and you are 4 feet 10 inches tall, your total would be 49 feet 10 inches.When we did this activity, we used a tape measure. I had her write down the distance to the object in inches, and her height in inches. After she added the 2 heights together , I had her convert the inches to feet in order to get in some math practice.So if her total were 495 inches, she would find how many feet this is by dividing by 12. It would be 41 feet, 3 inches.LikeBe the first to like this.One Response to "Making a simple theodolite: an activity for a measurement lesson"Comments Feedlessons this week-finishing up linear measure « Our Little Nature Nest [...] we walked around a bit we sat down by the river, and made a simple cardboard theodolite. A theodolite is a tool surveyors use to measure tall objects from a distance. You can make a very [...]Reply
What river in Chicago flows backwards?
chicago river
Chicago is located on what river?
The Chicago River.
What river is the city Chicago located?
Chicago River
Where is the Chicago River?
The Chicago River is about 10 miles and flows through Chicago.
What is the closet river to Chicago?
There are several rivers in the City of Chicago, including the Chicago River, and the Des Plaines River.
What river is dyes the river green in celebration of St Patrick day?
The Chicago River and San Antonio River are dyed green every St. Patrick's Day.
What is river near Chicago and town of same name near chicago?
Chicago and the Chicago River. Des Plaines and the Des Plaines River. Calumet City and the Calumet River.
Is the Chicago lighthouse located on the Chicago river?
There are no lighthouses on the Chicago River. There are several on Lake Michigan in Chicago.
Which river is located on the Chicago city?
The Chicago River and its branches.
Distance between Chicago and the Chicago river?
0 miles. The Chicago River passes through the City of Chicago.
What does the Athabasca river flow into?
forword and backwards
Is the word 'river' an example of a palindrme?
No, river is not a palindrome as when spelt in reverse, river is revir.Note: A palindrome must read the same backwards as it does forwards.
