Over 10 mio. titler Fri fragt ved køb over 499,- Hurtig levering Forlænget returret til 31/01/25
DRM-beskyttet
Opening Goliath

Opening Goliath

- Danger and Discovery in Caving

  • Format
  • E-bog, ePub
  • Engelsk
  • 288 sider
E-bogen er DRM-beskyttet og kræver et særligt læseprogram

Beskrivelse

Writing in a style that reads like fiction, Griffith takes readers into heart-stopping action alongside caver John Ackerman, who found unexplored Goliath Cave in southeastern Minnesota. St. Paul Pioneer PressNarrow passages, twisting upward or dropping precipitously. Huge vaults filled with fantastic shapes. Tunnels twined in tangled mazes. Over centuries, underground rivers can carve holes and rooms in solid rock; drips of water build walls of stone. Natural caves shape another world beneath our feet. Dangerous and beautiful, these places remain unknownuntil someone decides to investigate.In 2004, businessman and caver John Ackerman drilled an entryway into Goliath Cave, a huge and unexplored complex in the karst region of southeastern Minnesota. Squeezing through tiny openings, scuba diving through silt-filled waters, scaling walls, and traversing crevasses, he and his fellow cavers painstakingly mapped ever-further reaches of the complex in an exploration that continues to this day.But man-made caves that do not breathe can be even more dangerous than their natural cousins. In St. Paul, also in 2004, five teenagers entered an area where intermittent fires robbed the air of oxygen. Only two emerged alive.

Læs hele beskrivelsen
Detaljer

Machine Name: SAXO080