Energy & Green Tech

Using the power of plants to filter wastewater

Plants can be decoration, medicine, food, garments—they have as many uses as they do shapes and sizes. And Jacques Brisson, professor in the University of Montreal's Department of Biological Sciences, knows it better than ...

Robotics

Virtual bow deploys drone swarm in a series of shots

Skoltech researchers have developed an effective—and pretty dramatic—way for positioning a swarm of rescue or research drones. The operator wears a virtual reality helmet and a tactile interface to imitate shooting a ...

Electronics & Semiconductors

New device can measure toxic lead within minutes

Rutgers researchers have created a miniature device for measuring trace levels of toxic lead in sediments at the bottom of harbors, rivers and other waterways within minutes—far faster than currently available laboratory-based ...

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Pollution

Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms . Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

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