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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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February 7, 2017

Drones could help save the world’s forests (Wired UK)

Lauren Fletcher is aiming to tackle global climate change by planting one billion trees per year with his fleet of drones.BioCarbon EngineeringMatthew Ritchie Fletcher, who is the CEO of Oxford-based BioCarbon Engineering, and his team are developing planting technologies that will be integrated with unmanned aerial vehicles (UAVs) and sensors, allowing them to carry out "precision forestry". This uses geospatial information in forest planning and management, as well as site-specific silvicultural operations.The technology has reached the semi-final stage of the UAE's Drones for Good competition taking place in Dubai. The winner will be announced on 7 February and pocket $1 [...]
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April 5, 2015

Want More Malaria? Keep Chopping Down Tropical Rainforests

Turns out, biodiversity may help control the spread of a deadly disease.
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