Broadcast engineer Scott Todd recently found that a 40-year-old Broadcast Electronics FX-30 FM exciter needed recapping badly. Replacing all the dried-out electrolytic capacitors can be daunting.

The second law of thermodynamics says that entropy may only ever increase during the conversion of one physical state into another. Finding an analogous quantity to characterize the conversion of ...

Places in England still using local mean time in 1875, and Niels Bohr delivers a talk on the latest in quantum theory, in this week’s peek at Nature’s archive.

The author and investment advisor on the danger of chronic deficits, the importance of central bank independence, warning signs in private credit, and why he’s still optimistic about America’s future.

The continent is menaced by Russia, bullied by the US and squeezed by China. Brexit divided it, while far-right nationalism rots it from within. Europe can still pull itself together. But it needs to ...

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