United States is world's biggest plastic polluter, report finds

The United States is by far the biggest contributor to global plastic waste in the world, according to a new report submitted to the federal government Wednesday that called for a national strategy to tackle the growing crisis.

Tiny nanoparticles improve charge transport

Three-dimensional topological insulators are materials that can conduct electric current without resistance—but only on their surface. However, this effect is difficult to measure. This is because these materials usually ...

Researchers report an insulator made of two conductors

Ohm's law is well-known from physics class. It states that the resistance of a conductor and the voltage applied to it determine how much current will flow through the conductor. The electrons in the material—the negatively ...

New opportunities for light-powered battery and fuel cell design

Automotive and other industries are hard at work improving the performance of rechargeable batteries and fuel cells. Now, researchers from Japan have made a discovery that will enable new possibilities for future environmental ...

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