It would have 'melted your heart' [=it would have filled you with compassion, sympathy, etc.] to see her lying in that hospital bed.
Her anger 'melted away' when she saw that he was truly sorry.
He seemed to 'melt into' thin air. [=he seemed to disappear]
(..) because this baby breathes fire. WELLS: According to my calculations, it should take approximately . seconds for the ice to melt. What about the water and particulate evidence? Yeah, there's a -gallon basin below the grates that's (..)2016 TvShow: Bones Title: The Fight in the Fixer Season: 11 Episode 15
(..) According to my calculations, at room temperature, without forced convection, it should take approximately eight hours and minutes for the ice to melt. Brennan's not gonna want to wait that long. Actually, I think I have an idea. So what are you thinking? (..)2016 TvShow: Bones Title: The Fight in the Fixer Season: 11 Episode 15