Why does lava glow red?

What lends this super-hot material its fiery colour?

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Why does lava glow red?

Simply put, because it’s hot – in fact, lava can reach up to 1,250 degrees Celsius (2,282 degrees Fahrenheit). Heat excites atoms, which can boost atoms’ electrons to higher orbitals. When an excited electron returns to its normal orbital, it releases its excess energy as a light photon. Collectively, the photons produce a glow. The colour varies between atoms of different elements. And why is lava so hot? Lava is molten rock that escapes from the Earth’s inner mantle layer. Scientists trace the mantle’s heat back to the planet’s formation. The immense energy of material accreting together to form Earth heated the planet’s interior, and the outer crust has bottled it up all this time.

Answered by Tom Harris.

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  • Richard

    I would dissagree there somewhat . Whilst the Great White is a dangerous animal and is the largest non-filter feeding variety of shark it is by no means the most dangerous. The Bull shark is by far the most aggressive of all sharks attacking just for the sake of having a bad tempered nature. Its’ ability to withstand even only mildly brackish water means that many casualties have occured when people have been swimming, washing their clothes or fishing far upstream in river systems ( the Bull shark enter such water courses to breed ). Most ‘attacks’ start as an inquisative bite by most sharks including Great Whites just to suss out what is infront of it. Only if blood is drawn by this does the natural arousal of senses cause the feeding instinct to come into action.
    I would put the Great White in third place after the Tiger shark mainly because these animals feed as pack hunters and work together in order to achieve a kill, the Great White being solitary. The White Tip reef shark is another variety to be wary of not like its cousin the Black Tip which I have swam amongst happily on many occasions with not a fear in the world. The White Tip is very unpredictable in its behaviour almost comparable to a state of paranoia probably because these shaks like many are territorial unlike Whites who are roamers. Comments ???