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February 27, 2017

Dousing Flames with Low-Frequency Sound Waves

A new type of extinguisher that uses sound waves to put out fires has been built by two engineering students in the US. Both chemical- and water-free, the invention offers a relatively non-destructive method of fire control, which could find applications in fighting small fires in the home, and the researchers now hold a preliminary patent application for their device.

While the concept of using sound waves to extinguish flames is not new, previous attempts to realize the principle – including efforts by teams at West Georgia University and the US Defense Advanced Research Projects Agency (DARPA) – had not been successful.

Undeterred by this, as well as initial [...]

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April 7, 2015

Food Sovereignty Activists Protest at Bill Gate’s Corporate Seed Conference

Today, the Bill and Melinda Gates Foundation (BMGF) and the United States Agency for International Development (USAID) are convening a secret meeting to promote a recent report detailing in clear terms how to privatise the seed and agricultural markets of Africa. The meeting is being criticised for including corporations, development bodies, trade bodies and aid donors, yet excluding any African farmers or representatives of affected organisations.This morning in response food justice campaigners held a demonstration outside the offices of the BMGF in London, with placards calling on the foundation to ‘free the seeds’ and handing out packets of open-pollinated seeds as a symbol of [...]
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