Scientists have observed a unique particle that moves easily one way, yet resists at 90 degrees. These semi-Dirac fermions were observed using their energy signature in a topological metal. Particles ...
SYDNEY, AUSTRALIA - NOVEMBER 26: (EXCLUSIVE COVERAGE) One Direction (L-R) Harry Styles, Zayn Malik, Niall Horan, Louis Tomlinson and Liam Payne pose for a portrait backstage during the 28th Annual ...
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