Rust by definition is the result of the oxidation of metal. One engine manufacturer refers to the process of corrosion in aircraft engines as galvanic corrosion which is a type of corrosion caused by dissimilar metals being in close proximity of each other. In this process an electrolyte such as water also needs to be present. Almost all metals will oxidize or corrode.
Nightingale, Florence Nightingale, Lady with the Lamp(noun) English nurse remembered for her work during the Crimean War (1820-1910) Florence Nightingale. Florence Nightingale, OM, RRC was a celebrated English social reformer and statistician, and the founder of modern nursing.
Florence is to me a genius of lyrics, and to be honest, no one can ever read her mind, and some of her lyrics are left to your assumptions anyway. But this is my interpretation: (keep in mind that its just my opinion, ypu can take it or throw it out, I'm no expert) But its a love story. She is just obsessed with this guy, he means a lot to her, but this guy just starts loosing the spark.