Near ground-state cooling of 2-D trapped ion crystals

Researchers have been trying to cool macroscopic mechanical oscillators down to their ground state for several decades. Nonetheless, past studies have merely attained the cooling of a few selected vibrational modes of such ...

Static electricity's tiny sparks

Static electricity is a ubiquitous part of everyday life. It's all around us, sometimes funny and obvious, as when it makes your hair stand on end, sometimes hidden and useful, as when harnessed by the electronics in your ...

Producing electrical power with cardboard, tape, and a pencil

A small device made from everyday materials can generate enough energy to power several diodes. This clever discovery by an EPFL postdoctoral student was presented yesterday at a global conference on micro- and nano- systems ...

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