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Showing posts from August, 2011

Posters for World Water Week

Worldwide, 884 million people have inadequate access to clean water and more than 2.6 billion people do not have basic sanitation. Each year, around two million people die as a result of contaminated water, and most of these are children. This raises the following question: How can we make it clear to people as to why and how they should use water sparingly? 1st Winner: Pawel Dadok - Poland.

How big a backyard do you need to live off of the land?

More and more people are turning from grocery stores and utility companies in favor of their own back yard. The idea of becoming self-sufficient is an alluring one, but exactly how much land would you need? Assuming a family of four, here are the land requirements to sustain yourself for one year.

The surprising math of cities and corporations

Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In this mind-bending talk from TEDGlobal he shows how it works and how similar laws hold for organisms and corporations.

Solar Savings

A Solar Innovation Story.

Waterfalls flow upwards in extreme winds

Winds battering southern Australia over the last 24 hours have been so strong that spray from waterfalls south of Sydney has billowed up into the air. Nearly a month's worth of rain has fallen on the city in 24 hours, and wind speeds have reached 120km/h. The extreme weather has meant a rough ride on the city's ferries, and a high surf warning has been issued with waves expected to reach 5m.