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I recommend this book if anyone wants an "anti-gravitational" read about it: https://www.amazon.co.uk/Endurance-Shackletons-Incredible-Voyage-Antarctic/dp/0753

• Someone 6y ago
  “South!”, Shackleton’s own book about this expedition is worth reading, and available for free at http://www.gutenberg.org/ebooks/5199 http://www.gutenberg.org/ebooks/5199.