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" I try to sit down at the typewriter four times a day, even if it's only five minutes, and write three sentences. And if I feel like going on, or if something turns me on I'll just keep writing till I'm written out."
- Roger Zelazny
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| Half-Sphere Force Field | ||
| A protective force field that can manifest even as a half-sphere. |
Anybody can make a spherical force field, but I enjoyed this brief excursion into solid geometry from Heinlein.
| There flickered into being over the bench, hanging in the air unsupported, a silvery ball some two feet across... it made Don think of a Christmas tree ornament. ...Conrad bent over the controls. "Act two," he announced. "We now cancel out half of the locus..." Another shape took being, a perfect half-sphere otherwise like the last. |
| Technovelgy from Between Planets,
by Robert Heinlein. Published by Charles Scribner's Sons in 1951 Additional resources -
|
It is invulnerable to harm, and ordinary processes (like a burning cigarette) inside the sphere are uninterrupted. And how does it work?
"...There is no popular way to explain it. If you were willing to spend five hard years with me, working up through the math, I could probably bring you up to the same level of ignorance and confusion that I enjoy. Some of the tensor equations involved are, to put it mildly, unique..."
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Additional
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More Ideas
and Technology from Between Planets
More Ideas
and Technology by Robert Heinlein
Tech news articles related to Between Planets
Tech news articles related to works by Robert Heinlein
Half-Sphere Force Field-related
news articles:
- Trophy Active Defense System Not Quite A Force Field
| The FLUTE Project - A Huge Liquid Mirror In Space |
| 'Whisper Mode' ala Blue Thunder Researched At Bristol |
| Moonwalkers AI-Controlled Electric Shoes |
| Electric Catamaran 'Explorer Eco 40m' Has 'Solar Skin' |
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'Provision had been made to meet the terrific cold which we knew would be encountered the moment we had passed beyond the atmosphere.'
'You are who we say you are, Dr. Dakin,' Turner said.'
'It's area, and its consequent light-gathering capacity, was many times greater than any rigid mirror...'
'Tell me your torments,' the Padre said, in an elderly voice marked with compassion.
'...a slender-legged tripod surmounted by a spherical body no larger than a football.'
'... making the point that their likenesses, every move they made, were being transmitted.'
'But the stars are only atoms in larger space, and in that larger space the star-atoms could combine to form living matter, thinking matter, couldn't they?'
'...to build up a video picture would require, say, ten million decisions every second. Mike, you're so fast I can't even think about it. But you aren't that fast.'
