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"I can't tell whether or not there's going to be a Singularity. I don't really believe the rapture of the nerds stereotype..."
- Charles Stross
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| Photoelectric Course Warning | ||
| A means of keeping a spaceship on course using a selected star and a photoelectric cell. |
In this excellent short story, the first spaceship takes off for a destination outside the solar system. How to keep your ship on course over the long days...
| "Just keep that star on the cross hairs. It's Pi Orionis, a little out of our course, but a good target since it is only twenty-five light-years away. Half the light is deflected on this screen, with a delicate photoelectric cell at its center. The instant the light of the star slips off it, a relay is started which lights a red lamp here, and in a minute sounds a warning bell. |
| Technovelgy from Out Around Rigel,
by Robert H. Wilson. Published by Street and Smith in 1931 Additional resources -
|
This is not a true autopilot, since it does not correct the course. It just warns the pilot if the ship has wandered from its course setting.
However, I think it's a pretty good idea for 1931; airports had only started using lights in the late 1920's. They didn't even have real approach lighting until the 1930's. The lights in rows were only standardized in the 1940's.
I'm guessing that Wilson's idea is derived from the idea of using a photoelectric cell to keep a telescope trained on a star, which has been around since about 1915 (if I remember correctly).
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| Iron Beam Laser Under Development To Shoot Down Missiles With Lasers |
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'BY PUSHING AGAINST THE LITTLE MARTIAN MOON WITH OUR ROCKET SHIP, WE HAD LESSENED THE CENTRIFUGAL SPEED THAT HELD IT BALANCED IN THE SKY.'
'... he had tightened the chest to gain maximum pumping action from the motion of breathing.'
'...a prayer wheel swung into view and began spinning at a furious pace.'
'And are all the people willing to be governed by a machine?'
