Related topics: energy

Better energy harvesting with 'law-breaking' device

If you take an object and set it out in the sun, it will begin to warm up. This is because it is absorbing energy from the sun's rays and converting that energy to heat. If you leave that object outside, it will continue ...

Extracting clean fuel from sunlight

Securing enough energy to meet human needs is one of the greatest challenges society has ever faced. Previously reliable sources—oil, gas and coal—are degrading air quality, devastating land and ocean and altering the ...

Electricity generated from gravity

Mexican entrepreneurs developed a system capable of using the vehicular flow to generate electric energy. This development has the potentiality to produce sufficient electricity to power up a household through a device that ...

Splitting water molecules for a renewable energy future

The future economy based on renewable and sustainable energy sources might utilize battery-powered cars, large-scale solar and wind farms, and energy reserves stored in batteries and chemical fuels. Although there are examples ...

New highly efficient thermoelectronic generator

Through a process known as thermionic conversion, heat energy—such as light from the sun or heat from burned fossil fuels—can be converted into electricity with very high efficiency. Because of its promise, researchers ...

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