A high energy electron in circular/spiral motion radiates vortex photons in the entire wavelength range from the radio-wave to the gamma-rays, researchers have shown theoretically and experimentally.

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Centripetal and centrifugal forces are central to circular motion, but they're not the same. Discover the differences between the two often-confused forces.

Seismic shift: GINGERino is deep below these mountains. (CC BY-SA 3.0 Lucio De Marcellis) A laser gyroscope located deep beneath the Gran Sasso mountain in central Italy has made the first ...