Which outcome results when excessive sulfur content is used during black powder production for Congreve rockets?

💡 Explanation

Increased sulfur causes uneven combustion because *Bridgman's effect* leads to pressure sensitivity during ignition, therefore, variable thrust arises, rather than controlled burning, which requires a consistent composition and regulated confinement.

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• Which outcome occurred when late Roman fortifications relied increasingly on *opus mixtum*?
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