It starts with a question no gunner can answer in the moment: how many shells will it take to bring down that one-aircraft—a hundred, a thousand, or tens of thousands? The truth, learned the hard way ...

For centuries, mathematics was seen as the one discipline immune to contradiction — until one man proved it wasn’t. In the early 20th century, Kurt Gödel uncovered a flaw buried inside logic itself, ...

President Donald Trump bragged that he was delivering on affordability for Americans after Walmart shared that its annual Thanksgiving meal was cheaper than last year’s — though Internet sleuths are ...

Frequency combs are light sources with a spectrum that comprises a series of sharp, equally spaced lines. The frequencies of these lines are known to a very high degree of accuracy, which makes ...