Underwater

Definition and stakes

Portrait of Jules Verne Jules Verne,  20,000 Leagues Under the Seas… (1870)

“ Professor, you know as well as I do that a man can live underwater so long as he carries with him his own supply of breathable air. For underwater work projects, the workman wears a waterproof suit with his head imprisoned in a metal capsule, while he receives air from above by means of force pumps and flow regulators. ”
Source: Wikisource

Portrait of Jules Verne Jules Verne,  Twenty Thousand Leagues Under the Seas…

“ In fact, water is a better conductor of sound than air, and under the waves noises carry four times as fast.
Just then the seafloor began to slope sharply downward. The light took on a uniform hue. We reached a depth of 100 meters, by which point we were undergoing a pressure of ten atmospheres. But my diving clothes were built along such lines that I never suffered from this pressure. I felt only a certain tightness in the joints of my fingers, and even this discomfort soon disappeared. As for the exhaustion bound to accompany a two-hour stroll in such unfamiliar trappings—it was nil.
”
Source: Gutenberg

Portrait of Jules Verne Jules Verne,  Twenty Thousand Leagues Under the Seas…

“ With its untold depths, couldn’t the sea keep alive such huge specimens of life from another age, this sea that never changes while the land masses undergo almost continuous alteration? Couldn’t the heart of the ocean hide the last-remaining varieties of these titanic species, for whom years are centuries and centuries millennia? ”
Source: Gutenberg

Get perspective with Kwize: daily news enlightened by great literature