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// The Boiling Point (Slice of Life) 
// Story: Flashfic Entries 
// by Matthewl419 
//------------------------------//

“Twilight?”

“Yes, Spike?”

“How does a tea kettle work? I mean, I know the stove heats the water inside, but I don’t know why it whistles when it’s done.”

“Well, Spike, when the water reaches 212 Marenheit, or 100 Cantergrade, the water starts to vaporize, which causes steam. This steam, which is tiny droplets of water that condensed on the air, takes up more space than the liquid water did due to that air. So as more and more water vaporizes, the space inside the kettle gets filled up because it has nowhere but that tiny hole to go. As it builds up, it gains pressure, and when it has enough pressure, it causes vibrations in the metal which creates the whistling. Any questions?”

“Uh, yeah… what?”

“Uuggghh… boiling water creates steam, steam creates pressure, pressure creates vibration, vibration is sound.”

“Alright… thanks. But, Twilight? How is vibration sound?”

“......”