Preorders are officially open for Apple's new budget laptop: the MacBook Neo. Announced Wednesday during "special Apple experiences" in New York, London, and Shanghai, the long-rumored MacBook marks Apple's first foray into the low-cost laptop space. Not only does it start at just $599 (that's $500 cheaper than the MacBook Air), but if you lock in a preorder at Best Buy, you'll also get some free cash to spend.
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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.。关于这个话题，爱思助手下载最新版本提供了深入分析