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How Did We Get Here? The Tangled History of the Second Law of Thermodynamics

Stephen Wolfram

By 1807 the term “energy” had been introduced, but the question remained of whether it could in any sense globally be thought of as conserved. It had seemed for a long time that heat was something a bit like mechanical energy, but the relation wasn’t clear—and the caloric theory of heat implied that caloric (i.e.

Energy 88
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Launching Version 13.1 of Wolfram Language & Mathematica ??????

Stephen Wolfram

You can give Threaded as an argument to any listable function, not just Plus and Times : &#10005. we’re adding SymmetricDifference : find elements that (in the 2-argument case) are in one list or the other, but not both. If one’s doing something like astronomy, this kind of “physical” date computation is probably what one wants.

Calculus 114