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"did I had an extremely expensive wife - she would see a new car that she liked and just buy it... under California law I was bound to buy her debts. I think I turned out 16 novels in five years."
- Philip K. Dick
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| Free Return Trajectory | ||
| The idea that it would be possible for a projectile to go around the Moon and then return to Earth. |
It was the intent of the Baltimore Gun Club to actually hit the Moon with a projectile. However, upon missing the Moon the passengers began to debate upon the course of the projectile.
| In watching the course of the projectile they could see that on
leaving the moon it followed a course analogous to that traced
in approaching her. It was describing a very long ellipse,
which would most likely extend to the point of equal attraction,
where the influences of the earth and its satellite are neutralized.
Such was the conclusion which Barbicane very justly drew from facts already observed, a conviction which his two friends shared with him. "And when arrived at this dead point, what will become of us?" asked Michel Ardan. "We don't know," replied Barbicane. "But one can draw some hypotheses, I suppose?" "Two," answered Barbicane; "either the projectile's speed will be insufficient, and it will remain forever immovable on this line of double attraction----" "I prefer the other hypothesis, whatever it may be," interrupted Michel. "Or," continued Barbicane, "its speed will be sufficient, and it will continue its elliptical course, to gravitate forever around the orb of night." |
| Technovelgy from From the Earth to the Moon,
by Jules Verne. Published by Pierre-Jules Hetzel in 1867 Additional resources -
|
In writing the story the way he did, Verne became the first person to describe the idea of a free return trajectory, that is, a path that would lead from the Earth, around the Moon, and back to Earth again without any additional fuel expended for navigation.
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'He found a barber shop which, he thought, would be good for an idle hour.'
'Thirty rounds of fighting is tough work. Even for machines.'
'...the excavations were already in progress, for he saw gray slopes of rubble.'
'...the walking mills of Puffy Products began to tread delicately on their centipede legs across the wheat fields of Kansas.'
'Here is a Clerk that would work incessantly, and neither eat, sleep, want payment, or grumble.'
'ZARNAK, YOU'RE TO COMMAND A SCOUTING EXPEDITION --- FIND OUT WHAT THIS IS ALL ABOUT!'
'These are your rudimentary seed packages... Some will combine in place to form more complicated structures.'
