Ex-News Junkie
Overcoming the Barriers to Interstellar Travel
Mon Oct 16, 2017 11:02am

The fastest manmade spacecraft, New Horizons, travelling at 16,260 m/s would take 80,581 years to travel the 41.32 trillion kilometers to Alpha Centauri, the nearest star system. No matter how it is achieved, let there be no mistake: Interstellar travel would mean leaving everything behind. Let's start with that assumption then, that there is no reason to stay, or look back.

An extremely fast rotating drum, or centrifuge, whose outer rim is travelling at exactly 1 meter per second slower than the speed of light will experience a time dilation factor of 12,243. To put this in perspective, a TimeShip travelling at the exact same speed as the New Horizons would experience only 7 years of subjective time if it incorporated such a centrifuge. And assuming it is designed to last, would retain enough fuel for deceleration, orbital insertion, and landing upon arrival.

The radius of the spinning drum would not appreciably affect the g-forces to the extent that it would matter - a factor of ten or so. There would be on the order of 92 trillion gees created in the centrifuge. Human passengers, made of mostly water, could be suspended in a water donut, and the entire fluid volume protected from the g-forces by diamagnetic levitation in an ultra-high magnetic field. Currently, diamagnetic levitation is achieved for water and living things such as frogs in a field strength of 16 Teslas. It is assumed that this would be an area for further development.

Diamagnetic Levitation

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        • Radius = 100 meters Tangential velocity = c-1 = 299792457 m/s Vt/c = 0.99999999666 Lorentz Factor = 12243 As before the centrifuge is spinning with a rim speed of c-1 m/s, that is just 1 m/s slower... more
          • Massaging the numbers a bitEx-News Junkie, Sat Oct 28 11:34am
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              • Making things a bit more difficultEx-News Junkie, Sun Oct 29 8:07am
                Time dilation would vary along the radius of the centrifuge. The design calls for a rim speed of c-1 m/s to give a Lorentz factor of 12243. However, objects stored in the centrifuge are not... more
                • CorrectionEx-News Junkie, Sun Oct 29 8:24am
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