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 [...]
Lina Srivastava combines media, technology, art, and storytelling for social transformation. She is the founder of a social innovation strategy group that has provided project design consultation to social impact organizations, including UNESCO, the World Bank, UNICEF. But she also works as an impact producer with filmmakers.
She has worked on the Oscar-winning Born Into Brothels andInocente, the 2007 documentary The Devil Came on Horseback, and most recently Who is Dayani Cristal? which screened at Hot Docs, Sundance and New York Film Festival in 2013 and recently won the 2015 Social Impact Media Award. She is also the transmedia producer and impact strategist of Priya’s [...]