Researchers created a mathematical model analyzing combustion waves — from slow flames to supersonic detonation. It yields accurate solutions and explains the transition from deflagration to detonation. The work paves the way for safer engines and improved protection against industrial explosions.

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Israel’s determination to attack Iran and the certainty that US troops would be targeted in response forced the Trump administration to take pre-emptive strikes, the secretary of state, Marco Rubio, said, in a new explanation for Washington’s surprise entry into the conflict.

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