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<blockquote data-quote="Var" data-source="post: 7965718" data-attributes="member: 7022819">If we're talking about real world physics a bit:Stone starts burning/melting if it's hot enough (IRL WW2 air raid bombings did that frequently i.e. Dresden).Fireball vs Dragon breath is different in terms of the kind of energy levels involved.A Fireball would be less temperature damage and more force from an instantaneous explosion.Dragonbreath from a sufficiently sized dragon would be sustained wide area application of extreme heat for a couple seconds rather than a moment. Most of the energy would be transferred by the extreme heat rather than the explosion.So unlike a Fireball, Dragonbreath would heat up a rather sizable area of a castle wall and keeps the heat going for a bit. It wouldn't have to melt or burn a rather rigid and inflexible mineral structure under those circumstances. The stone would try to expand and has nowhere to go, parts of the wall would crack or burst and the weakened structure could crumble under its own weight.That would be the most realistic scenario how this could pan out, at least from my point of view.</blockquote>

[QUOTE="Var, post: 7965718, member: 7022819"] If we're talking about real world physics a bit: Stone starts burning/melting if it's hot enough (IRL WW2 air raid bombings did that frequently i.e. Dresden). Fireball vs Dragon breath is different in terms of the kind of energy levels involved. A Fireball would be less temperature damage and more force from an instantaneous explosion. Dragonbreath from a sufficiently sized dragon would be sustained wide area application of extreme heat for a couple seconds rather than a moment. Most of the energy would be transferred by the extreme heat rather than the explosion. So unlike a Fireball, Dragonbreath would heat up a rather sizable area of a castle wall and keeps the heat going for a bit. It wouldn't have to melt or burn a rather rigid and inflexible mineral structure under those circumstances. The stone would try to expand and has nowhere to go, parts of the wall would crack or burst and the weakened structure could crumble under its own weight. That would be the most realistic scenario how this could pan out, at least from my point of view. [/QUOTE]

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