Why some flames are blue and others are red?
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YouTubeminutephysics
Why some flames are blue and others are red?
Full video: https://www.youtube.com/watch?v=1pfqIcSydgE Chemistry may tell us the recipe for combustion, but the light show is all physics. When a flame burns cleanly (like a gas flame, blowtorch or the base of a candle), the heat excites the molecules to release light (usually pale-blue) from atomic transitions. That's quantum mechanics! Now ...
94K views4 days ago
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President Trump's meeting with Senate Republicans descended into a shouting match over the war in Iran. It came hours after Trump abruptly canceled plans to sign a major bipartisan housing bill. Rachel Scott reports for @abcworldnews.
President Trump's meeting with Senate Republicans descended into a shouting match over the war in Iran. It came hours after Trump abruptly canceled plans to sign a major bipartisan housing bill. Rachel Scott reports for @abcworldnews.
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