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Parents are forming a loose network teaching one another how to get their children off school-issued Chromebooks and iPads. THOUSAND OAKS, Calif. — Julie Frumin broke the news to her 11-year-old son ...

Schematic illustration of the quantum refrigerator in a superconducting quantum circuit. Two microwave channels act as hot and cold heat reservoirs, highlighted by a reddish and a bluish glow, ...