Insomnia download of the day

Isaac Newton's Optics should put you to sleep

more classical texts:

1. Newton, Isaac. "Preface to The Philosophiae Naturalis Principia Mathematica" (in "Prefaces and Prologues to Famous Books") · (readers)
2. Einstein, Albert. "Ether and the Theory of Relativity" (in "Short Nonfiction Collection Vol. 017") · (readers)
3. Einstein, Albert. "Geometry and Experience" (in "Short Nonfiction Collection Vol. 020") · (readers)
4. Einstein, Albert. "Relativity: The Special and General Theory" · (readers)
5. Einstein, Albert. "Sidelights on Relativity" · (readers)
   

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or try listening to:

Copernicus, Nicolaus. "Dedication from The Revolutions of the Heavenly Bodies to Pope Paul III" (in "Short Nonfiction Collection Vol. 003")

or if you prefer biology, try
Children's Life of the Bee, The by Maeterlinck, Maurice