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Brian Greene on string theory | Video on TED.com

Tue, 26 May 2009 23:28:13 -0700

Physicist Brian Greene explains superstring theory, the idea that minscule strands of energy vibrating in 11 dimensions create every particle and force in the universe.

The Truth About Twitter & Social Enterprise Blog

Mon, 25 May 2009 21:57:41 -0700

Have you wondered about twitter? Read this excellent article about what it is and ISN'T. In the last two weeks I have found 200+ math/stats teachers and elearning professionals.

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FTP:

"Unlike other social media technologies that skew younger, Twitter's demographic is the mid-career professionals who use the technology to extend professional networks, share expertise, and otherwise increase the scope and breath of the resources they can draw on to be successful. In my case, I have a network of 800+ professional colleagues through whom I can access a vast pool of knowledge, expertise, and wisdom. This network also helps my find and make sense of relevant industry news and events. This is the part about Twitter that new users and uninformed pundits miss. You can't experience the "network effect" until you have a network. It takes time, patience, and active cultivation to create your own personalized network.

Information Arbitrage: Twitter is our id, Facebook is our Ego

Wed, 20 May 2009 21:51:42 -0700

If twitter is the id, facebook is the ego then what is SU? After nearly 4 years of stumbling experience I think it defies categorization.

I will say that most people hide who they are here...whereas on twitter that is true some of the time and on facebook nearly none of the time.

I like to be transparent online. I am pretty suspicious of those that aren't although I appreciate that some people have different needs/values/agendas.

The Social Data Revolution(s) - Now, New, Next - HarvardBusiness.org

Wed, 20 May 2009 21:47:56 -0700

The Social Data Revolution(s)

Drew Westen: Speaking with Americans about Energy and Climate: From the Think Tank to the Kitchen Table

Wed, 20 May 2009 00:43:53 -0700

FTP: Over two decades have passed since Americans began to hear that burning fossil fuels and pouring their byproducts into the air was producing changes in the earth's atmosphere and the face of the globe that, if allowed to continue, could have calamitous effects not just on some exotic species in Fiji but on the exotic species we call Homo sapiens. Yet in the meantime, Homo has not been so sapiens, at least in the United States. Scientists have just reported that the problem has accelerated past their worst-case predictions, particularly since China has become America's rival in carbon emissions from coal-powered plants. Yet in the intervening decades we have done nothing -- other than to spear the Kyoto Treaty we took the lead it writing -- while other countries have tried to move forward as best they could without American leadership (or at least participation).

The Twitter Experiment at UT Dallas

Wed, 20 May 2009 00:17:24 -0700

FTP: The idea was to set up all of the students on twitter while they were in class and have them post discussion ideas/questions and respond to each other using twitter.

Edit Google Documents Directly in Microsoft Office or Save Your Local Office Files on Google Docs

Tue, 19 May 2009 23:53:45 -0700

FTP: You can save your Office documents directly to Google Docs or directly open your online documents in Microsoft Office programs for reading and writing.

Guest Column: Math and the City - Olivia Judson Blog - NYTimes.com

Tue, 19 May 2009 22:11:27 -0700

FTP: "The mathematics of cities was launched in 1949 when George Zipf, a linguist working at Harvard, reported a striking regularity in the size distribution of cities. He noticed that if you tabulate the biggest cities in a given country and rank them according to their populations, the largest city is always about twice as big as the second largest, and three times as big as the third largest, and so on. In other words, the population of a city is, to a good approximation, inversely proportional to its rank. Why this should be true, no one knows. "

http://bpp.wharton.upenn.edu/betseys/papers/Paradox%20of%20declining%20female%20happiness.pdf

Tue, 19 May 2009 21:55:42 -0700

Paradox of declining female happiness (pdf)

- Wolfram|Alpha

Tue, 19 May 2009 19:55:10 -0700

This is a truly handy site for anyone needing to create pretty formulas, graphs, etc. I will definitely be using it!