There are only 230 possible ways for atoms to form repeating crystal patterns. Quasicrystals don't fit into any of them. Their unique shape lets them form a pattern that fills the space ...

There are only 230 possible ways for atoms to form repeating crystal patterns. Quasicrystals don’t fit into any of them. Their unique shape lets them form a pattern that fills the space ...

Abstract: This letter presents a dual-polarized broadband filtenna (filtering antenna) using grid-shaped transmission line as the radiator arm. It contains a grid-shaped dipole radiator, four ...

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Although no Republican member of Congress has called for any official to resign, a few members of Trump's party have joined Democrats in expressing concern about the chat on Signal.