Upon arrival, the sabotage escalates. A major dome is breached, and the protagonists witness the terrifying power of the "Living River." The water pressure and the aggressive aquatic life (V-frogs and other creatures) make every breach a catastrophe. Asimov creates high tension by describing the water not just as H2O, but as a weight that can crush steel and a medium for alien intelligence.
"Algae does not coordinate," Vance said, his voice rising slightly. "Last week, we dropped a probe into the current. A standard geological probe. It was designed to withstand the pressure of the Mariana Trench on Earth. Within three seconds, the river dissolved the hull. Not by crushing it, but by dismantling it. Molecular dissociation." El Rio Viviente Isaac Asimov Pdf
: Asimov meticulously details how the blood maintains the body's internal environment (homeostasis). Complex Science Made Simple Upon arrival, the sabotage escalates