News tagged with wavelength of light

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Sun-free photovoltaics

A new photovoltaic energy-conversion system developed at MIT can be powered solely by heat, generating electricity with no sunlight at all. While the principle involved is not new, a novel way of engineering ...

Jul 29, 2011 4.9 / 5 (11) 6 | with audio podcast

The power of spin

(PhysOrg.com) -- Supermasssive black holes - objects with masses of millions or billions of suns - are found at the nuclei of dramatic galaxies like quasars where they are responsible for some of the most ...

Jan 28, 2011 4.3 / 5 (9) 5