📚 Carl Sagan

  • 📖 Carl Sagan Cosmos.pdf
  • 📖 Carl Sagan Pale Blue Dot A Vision of The Human Future In Space 1997.pdf
  • 📖 Dragons Of Eden.pdf

    • 📚 Isaac Newton

  • 📖 Newton Principia Mathematica.pdf

    • 📚 Nikola Tesla

  • 📖 My Inventions The Autobiography of Nikola Tesla.pdf
  • 📖 The Inventions Research and Writings of Nikola Tesla.pdf
  • 📖 Wizard The Life and Times of Nikola Tesla Biography of a Genius.pdf