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"Always listen to experts. They'll tell you what can't be done and why. Then do it."
- Robert Heinlein
 |
| Solar Yacht | ||
| A space craft whose motive power is light pressure on a solar sail. |
| But Merton knew better: though his body could feel no thrust, the instrument board told him that he was no accelerating at almost one thousandth of a gravity. For a rocket, that figure would have been ludicrous - but this was the first time any solar yacht had ever attained it...
 (Sunjammer from Boy's Life) |
| From Sunjammer,
by Arthur C. Clarke. Published by Boy's Life in 1963 Additional resources -
|
Here's a bit more:
The cloud of electrified gas would probably miss the Earth completely... Spaceships could protect themselves with their powerful magnetic screens; but the lightly built solar yachts, with their paper thin walls, were defenseless against such a menace...
The autopilot, tensioning the rigging like a busy little spider, kept the great sail trimmed to the Sun more accurately than any human pilot.
The idea for a solar yacht probably came from scientist JD Bernal, who wrote the following in 1929:
Earlier efforts to describe solar sailing in science fiction include the light sail from Jack Vance's 1962 short story Sail 25 (see this article for more on the subject) and the starlight sail from The Lady Who Sailed The Soul (1960) by Cordwainer Smith.
...a solar flare.
"A form of space sailing might be developed which used the repulsive effect of the Sun's rays instead of wind. A space vessel spreading its large, metallic wings, acres in extent, to the full, might be blown to the limit of Neptune's orbit. Then, to increase its speed, it would tack, close-hauled, down the gravitational field, spreading full sail again as it rushed past the Sun."
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Solar Yacht-related
news articles:
- LightSail Solar Sail Deploys
| Dream Of Building Your Own Rocket? |
| Used Dragon Cargo Spacecraft Will Fly Again |
| Laser-Powered Spacecraft To Explore The Solar System |
| SKYLON Space Plane Gets Boost |
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''... major cities of Earth have free electrical power conveniently processed from their own noise.'
'The appearance was enough like a giant witch's broom to justify the nickname.'
'A vast circle of scarlet stars came up into the greenish desert dusk.'
'He had constructed an organ, a brain, of metal, entirely inorganic and lifeless...'
'I shall never forget the sight... when the yellow gleam of the precious metal appeared under the star dust.'
Oh, and now I suppose someone will develop the robotic porch pirate.
'This thing will start at one end of ...a house and build it complete to the other end, following drawings only.'
