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 __   __   _    _     ______   _    _     ______  
 \ \\/ // | || | ||  /_   _// | || | ||  /_   _// 
  \   //  | || | ||  `-| |,-  | || | ||    | ||   
  / . \\  | \\_/ ||    | ||   | \\_/ ||   _| ||   
 /_//\_\\  \____//     |_||    \____//   /__//    
 `-`  --`   `---`      `-`'     `---`    `--`

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Text this: Heterogeneous nucleation or homogeneous nucleation?