Energy & Green Tech

Wave-powered SeaRAY preps for Hawaii trial

Offshore industries, like marine research, fish farming, and mineral mining, often rely on big ships with large crews. Without clean energy to power these vessels, each trip out to sea and back to shore is not only expensive ...

Engineering

Thermal power nanogenerator created without solid moving parts

As environmental and energy crises become increasingly more common occurrences around the world, a thermal energy harvester capable of converting abundant thermal energy—such as solar radiation, waste heat, combustion of ...

Engineering

The first endovascular technology that can explore capillaries

At EPFL, Lucio Pancaldi, a Ph.D. student, and Selman Sakar, an assistant professor, have harnessed hydrokinetic energy (mechanical energy resulting from the motion of liquids) to get an instrument into places in the human ...

Energy & Green Tech

Inertia and the power grid: A guide without the spin

The power grid is evolving to include ever-higher levels of wind and solar generation—which do not provide inertia, historically a key source of grid reliability. Should system planners and operators panic? A new video ...

Electronics & Semiconductors

Environment-friendly compound shows promise for solar cell use

A widespread transition to solar energy will depend heavily on reliable, safe, and affordable technology like batteries for energy storage and solar cells for energy conversion. At Rensselaer Polytechnic Institute, researchers ...

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