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Sol (borrowed from the Latin word for sun) is a solar day on Mars; that is, a Mars-day. A sol is the apparent interval between two successive returns of the Sun to the same meridian (sundial time) as seen by an observer on Mars. It is one of several units for timekeeping on Mars. A sol is slightly longer than an Earth day.
The basic time periods from which the calendar is constructed are the Martian solar day (sometimes called a sol) and the Martian vernal equinox year.The sol is 39 minutes 35.244 seconds longer than the Terrestrial solar day, and the Martian vernal equinox year is 668.5907 sols in length (which corresponds to 686.9711 days on Earth).
Remarkably, the 37-sol period also accidentally almost divides several time quantities of interest at the same time. In particular: One Martian year is approximately equal to 18 × (37 sols) + 2.59897 sols; Two Earth-Mars synodic periods are approximately equal to 41 × (37 sols) + 1.176 sols
Mars's average distance from the Sun is roughly 230 million km (143 million mi), and its orbital period is 687 (Earth) days. The solar day (or sol) on Mars is only slightly longer than an Earth day: 24 hours, 39 minutes, and 35.244 seconds. [185] A Martian year is equal to 1.8809 Earth years, or 1 year, 320 days, and 18.2 hours. [2]
A play by Asimov called The Story Machine, which is an adaptation of his short story "Someday", was published in the February 1958 issue of Plays. [7] In 1950 Asimov wrote a comic strip called "Star Empire" (art by Charles Schneeman). The first page appeared in the May 1990 issue of Argosy. [8] [9] [10] [11]
The Martian Way and Other Stories is a 1955 collection of four science fiction stories (3 novelettes and one novella by American writer Isaac Asimov, previously published in 1952 and 1954.
A complex plot of body-swapping and time travel ensues. It is considered by some people to be the best story in the collection. [2] "Dumb Martian" [3] a satire on racism, featuring an Earthman who buys a Martian wife. "Compassion Circuit" a horror story on the subject of robotics. "Survival" set on a spacecraft marooned in orbit around Mars.
She first appears in The Gods of Mars, among a group of Red Martians rescued by John Carter from the nefarious Therns who maintain the illusion of the Martian 'Heaven' in the Valley of Dor. She is later imprisoned with John Carter's wife Dejah Thoris , in a temple prison which can only be opened once per year and remains by her side for much of ...