The Boston bombing probe might have been helped if the explosives were marked with microscopic identifiers called taggants. But the technology has long been off-limits, thanks to the National Rifle ...

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This summer, I conducted a series of backyard experiments involving gunpowder and spirits. For each trial, I poured old-fashioned black gunpowder onto a plate, dampened it with a bit of rum or gin or ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. For as long as I can remember, I’ve loved gunpowder. One of my ...