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"I should go a step further," said Bearwarden, "and say our earth has the peculiarity, since it does not possess the influence necessary to generate naturally a great or even considerable development of apergy. The electricity of thunderstorms, northern lights, and other forces seems to be produced freely, but as regards apergy our planet's natural productiveness appears to be small."
Far back in the distant Eocene Epoch of our planet's history, the Colorado was the outlet of an inland sea which drained off toward the Pacific, as the country of northwestern Arizona rose; and the Grand Cañon illustrates, on a stupendous scale, the system of erosion which, in a lesser degree, has deeply furrowed the entire region.
But to you has come, perhaps, the greatest form of all a definite and instant merging with the being of the Earth herself. You reached the point where you felt the spirit of the planet's life. You almost crossed the threshold your extension edged into her own. She bruised you, and you knew " "'Bruised'?" he asked, startled at the singular expression into closer hearing.
At a distance of something less than 20,000 miles from the planet or perhaps it would be more correct to say above the planet, for the rings hang directly over Saturn's equator the broad, bright ring merges into a mysterious gauzelike object, also in the form of a ring, which extends to within 9,000 or 10,000 miles of the planet's surface, and therefore itself has a width of say 10,000 miles.
Sorting through a thick sheaf of envelopes he found one with his name on it. He took it to one of the cubicles, whose door he locked from the inside, setting up full coverage. As he read there flashed through his mind the background of this other planet's situation.
There was something which cast a long, lacy shadow. The landing-grid. "But they don't answer our call," observed Calhoun, "so we go down unwelcomed." He inverted the Med Ship and the emergency-rockets boomed. The ship plunged planetward. A long time later it was deep in the planet's atmosphere. The noise of its rockets had become thunderous, with air to carry and to reinforce the sound.
There's nothing about being a tormal to make you ashamed!" Then he grimly changed his garments for the full-dress uniform of the Med Service. There was to be a banquet at which he would sit next to the planet's chief executive and hear innumerable speeches about the splendor of Weald. Calhoun had his own, strictly Med Service opinion of the planet's latest and most boasted-of achievement.
Are not the stars like beacons set, To guide the argosies that go From universe to universe, Our little world above, below? On their great errands solemn bent, In their vast journeys unaware Of our small planet's name or place Revolving in the lower air. Oh thought too vast! oh thought too glad: An awe most rapturous it stirs.
The POLAR CAPS! During the Martian winter these extend down nearly to the equator, and cover about five-sevenths of the planet's surface when at maximum; and as the snowfall averages from six inches at the edge of the caps to 50 feet at and near the actual Poles, some idea may be gained of the amount of moisture taken care of by these artificial waterways.
In the early stages of a planet's growth it will probably remain cold, the small amount of heat produced by each impact being lost by radiation before the next one occurs; and with a small and slowly aggregating planet this condition will prevail till it approaches its full size.
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