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  ____      ______    _____     _____    __   _   
 |  _ \\   /_   _//  /  ___||  |  ___|| | || | || 
 | |_| ||   -| ||-  | // __    | ||__   | '--' || 
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 |_|\_\\   /_____//  \____//   |_____|| |_|| |_|| 
 `-` --`   `-----`    `---`    `-----`  `-`  `-`

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Text this: Patterns of light : chasing the spectrum from Aristotle to LEDs