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Coming to a city near you soon: By adding giant flywheels to subway systems, cities are able to harness the power created by thousands of braking trains, using it to accelerate other trains or feeding it back into the grid. Every time a train starts and stops, it draws or dissipates several megawatts of energy, enough to power more than a thousand homes. This happens thousands of time per day, every day, in commuter rail systems across the country.

How do people value a better life? The Organisation for Economic Cooperation and Development (OECD) recently released the Better Life Index, an interactive graphic that lets you rank 11 different dimensions (income, environment, life satisfaction, etc.) to see how different countries perform, and then “share” your ranking

Women of child-bearing age discuss how their dreams have been inhibited by their economic reality

In 2005, 85 percent of business owners were optimistic about the future. It's a tie between small business owners who think the economy and their small businesses will improve—and those who think both will tank, says a new report. The latest edition of American Express Open's semi-annual Small Business Monitor suggests small business optimism has not recovered from the hit it took in 2008.

Many parents would like their children to master a second language, but few kids in this country do. Only 9 percent of adults in the U.S.

Ogilvy ECD Ramos says, let's put the B in BRIC. Brazilian creative Anselmo Ramos left his homeland to work in Europe and the U.S. for 12 years

By Chikako Mogi TOKYO (Reuters) - Economic risks are too high for Japan to pull the plug on its 54 nuclear plants next year despite intense public pressure on Tokyo to cut reliance on atomic power in favor of other clean energy sources. [More]

Which topic are science journalists most likely to talk about when they get together? A) The epistemological issues raised by multiverse theories; B) The revival of social Darwinist ideas in Tea Party rhetoric; C) The relevance of experiments on sea slug brains to the debate over free will; D) Statistical evidence linking global warming to this spring's tornado outbreak; or E) None of the above

Ethonomic Indicator of the Day: $796 billion--the economic impact of the Human Genome Project. The Human Genome Project--a $3.8-billion international human genome mapping project that ran from 1988 to 2003--wasn't just a money-sucking vanity initiative that only reaped profits for personal genetic testing companies like 23andMe . The project has, in fact, driven $796 billion in economic impact and generated $244 billion in total personal income, according to a new report from Battelle .

This article is the final part of an 8 part series. Read part 7 to learn how to find your economic sweet spot

What do guns, burglar alarms, and condoms have in common?