β Scribed by Hal Clement
No coin nor oath required. For personal study only.
Mesklin is a vast, inhospitable, disc-shaped planet, so cold that its oceans are liquid methane and its snows are frozen ammonia. It is a world spinning dizzyingly, a world where gravity can be a crushing 700 times greater than Earth's, a world too hostile for human explorers. But the planet holds secrets of inestimable value, and an unmanned probe that has crashed close to one of its poles must be recovered. Only the Mesklinites, the small creatures so bizarrely adapted to their harsh environment can help. And so Barlennan, the resourceful and courageous captain of the Mesklinite ship Bree, sets out on an heroic and appalling journey into the terrible unknown . . .
"Hard" SF based on real physics made huge demands on 1950's writers with no desktop computers. Perfectionists like Hal Clement did all their calculations of gravity, orbits and centrifugal forces using just a slide rule and book of log tables. Clement also worked hard to conceal this laborious effort: in Mission of Gravity (1953) there are no equations, but simply the convincing reality of the extraordinary planet Mesklin.
Mesklin is unusually massive and spins particularly fast: its "day" lasts not 24 hours but 18 minutes. The huge mass means an unthinkable gravity of 700 times Earth's, but only at the poles. Where the spin has most counter-effect, at the equator, the overall pull is a mere three times the earth's gravity. Humans can walk there, on crutches, to bargain with the centipede-like, hydrogen-breathing Mesklinites for the recovery of an expensive research probe that's been lost near the unreachable south pole.
It's Barlennan of Mesklin, captain of the native ship Bree, who steals the show. He's bright, brave, and experienced in sailing his world's liquid-methane seas. The immense journey to recover Earth's stranded treasure confronts Barlennan's crew with unexpected but ingeniously logical obstacles and menaces. Constantly in touch with humans by radio link, Barlennan is both grateful for the scientific insights these visitors provide and suspicious about what--as a mere "primitive"--he's carefully not being told. As journey's end approaches, Barlennan makes some quiet plans of his own... Mission of Gravity is an acknowledged classic of old-fashioned SF world-building. --David Langford
One of the most important and best loved novels in the genre
Library : Science Fiction
Universes : S.F. Masterworks [62]
Formats : EPUB
ISBN : 9780575077089
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Cover Artist: Ed Emshwiller Mission of Gravity is an sf novel by Hal Clement. The title is a play on words, one meaning "the force which pulls" & the other being "extremely serious or important". It was serialized in Astounding Science Fiction, 47/53. Its 1st cloth publication was in '54. It was 1st
Preliminaries; Copyright; Contents; eForeword; Chapter 1 Winter Storm; Chapter 2 The Flyer; Chapter 3 Off the Ground; Chapter 4 Breakdown; Chapter 5 Mapping Job; Chapter 6 The Sled; Chapter 7 Stone Defense; Chapter 8 Cure for Acrophobia; Chapter 9 Over the Edge; Chapter 10 Hollow Boats; Chapter 11 E
Preliminaries; Copyright; Contents; eForeword; Chapter 1 Winter Storm; Chapter 2 The Flyer; Chapter 3 Off the Ground; Chapter 4 Breakdown; Chapter 5 Mapping Job; Chapter 6 The Sled; Chapter 7 Stone Defense; Chapter 8 Cure for Acrophobia; Chapter 9 Over the Edge; Chapter 10 Hollow Boats; Chapter 11 E
Discover MESKLIN - Gravity: 3g at the equator, 700g at the poles! For a profit -- and adventure -- Barlennan would sail thousands of miles across uncharted waters, into regions where gravity itself played strange tricks. He would dare the perils of strange tribes and stranger creatures -- even dicke