Do not retreat from your identity, do not recoil from your soul, from your ideas, wear your colors on your sleeve - do not hide in the shadows - do not be ashamed - make your actions and voices visible. Fear is how they win, turn that fear into action.

The boil has risen to the surface, now more than ever our opportunity awaits. This is our chance to rise - rise against what was perceived to be hidden. Now is the time to stand firm, stand firm and fight for what is just, what is right, what is fair, and what leads to progress for humanity.

#Justice and #Progress must and will prevail - we must correct.

I stand with you.

]]>The original article can be found at Grist.org

In this article Michael Wines explains one particular example of how climate change in the region will cause serious consequences for those living in the western part of the United States. He states, "...Moisture loss from early snowmelt is worsening a record hydrological drought on the Colorado River, which supplies water to about 40 million people from the Rockies to California and Mexico; by 2050, scientists estimate, the Colorado’s flow could drop by 10 percent to 30 percent..." The consequences are not only to humans but to the animals who also depend on the resources of this area.

This is an informative article, you can read more from it below:

Climate Change Threatens to Strip the Identity of Glacier National Park]]>Check it out here!

]]>George Washington Bridge, connecting Manhattan, NY to Fort Lee, NJ

It's a fact that the nation's infrastructure is crumbling and aging. The average American dodges potholes, struggles with traffic congestion, and copes with air travel hassles and all the while having minimal access to any adequate public transportation. But a country’s infrastructure is more than just transportation grids. America's infrastructure includes other things like water supplies, waste-water grids, the electrical grid, shipping ports, schools, and hospitals. These cumulatively are known as the built environment and together they account for the US's built assets. In a recent report produced by the global natural and built asset consultancy ARCADIS in coordination with the Centre for Economics and Business Research, an economic research and forecasting firm, found that the US generated approximately 37 percent of GDP in 2013 from built assets which is less than the global average of 40% (Wilcox, 2014). The report also measures returns on assets as a measure of GDP, and of that measure, the US is forecast to rank second with 5.7 trillion and China forecast to rank first with 7.4 trillion in 2014, while India, Japan, and Germany are forecast to rank 3rd, 4th, and 5th respectively in 2014 (Rawlinson & Edwards, n.d.). While the US performs well overall, the trend for growth in built assets is sluggish. "...the US needs to review the condition and use of its current assets and be strategic about its new asset creation in order to maintain its competitiveness and improve performance over the next decade" (Rawlinson & Edwards, n.d.). It is clear, the US needs to invest more in their infrastructure and this report supports that assumption.

View the infographic here.

View the full report online here.

Download the full report here.

References

Built assets contributed $27 trillion to global GDP during 2013. (2014, May 7). Retrieved May 25, 2014, from Center for Economics and Business Research website: http://www.cebr.com/reports/global-built-asset-performance-index/

Rawlinson, S., & Edwards, C. (n.d.). Global Built Asset Performance Index 2014. Retrieved May 25, 2014, from ARCADIS website: http://www.arcadis.com/builtassetindex/index.html

Wilcox, K. (2014, May 20). Report Examines Role of Infrastructure on GDP. Retrieved May 25, 2014, from Civil Engineering website: http://www.asce.org/cemagazine/Article.aspx?id=23622330933#.U4KIYij7GIB

In linear algebra, a common equation used is A** x = b**, in fact this equation is one of the foundations of linear algebra, which is known as the matrix equation. So it’s when we cannot get a solution to this matrix equation that we implement the least squares method. Which gives us a good approximation for the solution we seek. Completing a few of these problems in which a professor assigned to me, I really began to see the power of this least squares method. One can determine the future profits of an airline, biomass growth, the list goes on.

Here is a summary that I wrote about the least squares problem, where * x *is a vector, while

…when we were faced with an over-determined system of equations Α** x = b**, we simply gave up and said “the system has no solution” or “the system is inconsistent”, the points are not collinear. What the least squares method seeks to do is to find an

If Α is *m* x *n* and * b *is in R

As Lay also points out, no matter what *x* is selected the vector Α*x**will always be in the column space of Α, Col(Α),* As we will see this justifies our use of least squares. The solution to least squares begins with using The Best Approximation Theorem to the subspace Col(Α), so let

*b *=* proj Col(A) to b*

Since there is a *b *in the Col(Α) and an *x *in R^{n} we arrive at Αx=*b *because Αx=*b *is consistent So deriving now by orthogonal decomposition and A^{T} (** b**- Α

For our case *x *= (A^{T} A)^{-1} A^{T}* b *thus resulting in the least squares error for approximation

The reason I am writing about this is because for me, this was the most intuitive application I have found in a math course and it proves how math applies to the world in so many different ways.

References:

Bentz, Ryan (2014). Least Squares Summary. Blackwood

Echeverria, P. (n.d.). Orthogonal Projections. *Instructor Notes*.

Lay, D. C. (2012). *Linear Algebra and Its Applications.* Upper Saddle River: Addison Wesley.

*Image: Arturo Vittori*

According to Flaherty the development of this project has taken two years and currently Vittori is seeking " financial rainmakers who’d like to seed these tree-inspired structures across the country," the cost for the completed tower is around $500 dollars and takes roughly a week to complete by a group of four and it can reasonable collect up to 25 gallons of fresh drinking water per day (Flaherty, 2014).

Be sure to check out Flaherty's full article here.

References:

Flaherty, J. (2014, March 28). A Giant Basket That Uses Condensation to Gather Drinking Water. Retrieved March 29, 2014, from Wired Magazine website: http://www.wired.com/design/2014/03/warka-water-africa/

Warkawater. (2012). Retrieved March 29, 2014, from Architecture and Vision website: http://www.architectureandvision.com/projects/chronological/84-projects/art/492-073-warkawater-2012?showall=&start=1

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