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Science Fiction
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"It wasn't until I was past forty that it bacame clear that I was going to be quote, successful, unquote."
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Early navigation relied on several natural phenomena; the fixed pole star (or stars, when the pyramids were built) and the north magnetic pole. What can you do if a planet has no stable magnetic field, or if the planet's surface is prone to storms that disrupt the field?
People have made practical use of the Earth's magnetic field since ancient times, but it wasn't until 1600 that William Gilberte, personal physician to Queen Elizabeth, published his astounding De Magnete. In it, he revealed his studies with a "terrella" (a magnetized sphere); he hypothesized that the Earth was itself an immense magnet.
If you're into magnetic fields (and, in fact, we all are - just use a compass!), take a look at the very cool Earth's Magnetic Field Images, an interactive page that allows you to see field strengths at different years in the 20th century. (Courtesy of our friends at NOAA - the National Oceanic and Atmospheric Administration.) (Special thanks to a reader who pointed me to a new URL for the old one!) Comment/Join this discussion ( 0 ) | RSS/XML | Blog This | Additional
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Science Fiction
Timeline
Reflect Orbital Sunlight On Demand
'I don't have to tell you about the seven two-mile-diameter orbital mirrors that circulate around the satellite, making it habitable.'
The Amazing Lightfoot Electric Scooter With Solar Assist
'The steel tortoise gave MacKinnon a feeling of Crusoe- like independence.'
Fully Electric, Fully Automated Vegetable‑growing Agribots
'...then back to their work, though little enough it was on these automatic cultivators.'
Boy Makes Biomimetic Turtle Robot
't came out into plain view. Darkington glimpsed a slim body and six short legs of articulated dull metal.'
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'The suit stands up and starts walking, gripping me round the calves and waist, taking the bulk of my weight off my throbbing feet.'
Elon Musk Wants Data Centers In Space
'Internally it’s made up of millions of components, but the most important ones are the thinking and memory parts of the Mind proper.'
Origin F1 Humanoid Robot's Facial Skin
'I could look down at that face of carefully molded synthetic rubber, tinted the exact shade of the doctor's living flesh.'
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