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Quantum SpaceJim Baggott OxfOrd Univ. Press (2018)Prolific physics writer Jim Baggott is back with a terrific page-turner on loop quantum gravity (LQG) — the theory posited as a solution to that chasm in physics between quantum mechanics and the general theory of relativity. Baggott digs into the how and why of what LQG might reveal about “space, time and the universe”, tracing its evolution through the work of Abhay Ashtekar, Lee Smolin, Carlo Rovelli and others, to its current implications for, say, the physics of black holes. Baggott masterfully tenderizes the scientific chewiness and is careful not to over-egg what is, after all, a work in progress.The Republican ReversalJames Morton Turner and Andrew C. Isenberg Harvard Univ. Press (2018)In the 1960s and 1970s, the US Republican Party — pressured by the era’s environmental movement — created the Environmental Protection Agency (EPA) and extended the Clean Air Act. Today, it busily eviscerates the EPA while denouncing climate chang...