Ex-News Junkie
No warp drive, no wormholes, no faster-than-light trickery
Tue Oct 17, 2017 8:37pm

Realizing that one cannot circumvent the laws of physics, the Interstellar TimeShip concept achieves interstellar travel within a human lifetime without violating any laws of physics (that I know of), and without using any more propellant than would be required to reach the outer planets of our solar system, i.e. escape velocity. For example, a slingshot around Jupiter might be sufficient for an interstellar trajectory.

It also removes the requirement for linear relativistic velocity and instead achieves relativistic time dilation in a manner that can utilize mechanically stored rotational energy - energy that can be acquired & stored before departing the solar system, and recovered efficiently upon arrival at the destination star system in a manner analogous to 'regenerative braking'.

The Interstellar TimeShip reduces the problems inherent to interstellar travel to just one significant technological barrier: balancing centrifugal force with diamagnetic force. So far, diamagnetic levitation that balances the force of gravity has been demonstrated with living things such as plants, crickets, frogs and mice. There is no reason why it cannot be done with humans.

Diamagnetic levitation has not been attempted inside a centrifuge (yet!), and therefore it is unknown how many gees might be survivable to diamagnetically-levitated animals. Balancing the trillions of gees of a relativistic centrifuge might be far off in the future, but small steps might eventually get us there.

Youtube - Dutch scientists levitate frog & cricket in magnetic field

  • Overcoming the Barriers to Interstellar TravelEx-News Junkie, Mon Oct 16 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... more
    • No warp drive, no wormholes, no faster-than-light trickery — Ex-News Junkie, Tue Oct 17 8:37pm
      • Torus Habitat - Relativistic Centrifuge combinationEx-News Junkie, Sat Oct 21 8:12am
        It would be safe to assume that there are no habitable planets besides Earth orbiting any other star. Therefore, any interstellar voyage should take a habitable world with them. Living in space... more
        • 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
            Relativistic Centrifuge with Magnetic Levitation RPM = 28628071 RPS = 477135 Radius = 100 meters Rim speed = c-1 = 299792457 m/s Lorentz Factor = 12243 Centripetal acceleration = 898,755,172,740,968... more
            • Starfield Effects at 66 percent of the speed of lightEx-News Junkie, Sat Oct 28 4:10pm
              The starship would be a "slow boat" to the stars, with an actual speed of only 16 km/sec. But time would run very slowly inside the relativistic centrifuge. If there were a window (more likely a... more
              • 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
                  200,000 km is 2.3-times the diameter of a geosynchronous orbit around Earth, and nowhere near the size of the Moon's orbit. My bad! This size starship is actually in about the same ball park as many... more
                  • Imagery from the movie "Jupiter Ascending"Ex-News Junkie, Sun Oct 29 8:28am
                    • Roadmap to Interstellar CivilizationEx-News Junkie, Sun Oct 29 9:24pm
                      It seems clear how a starship would eventually be built: First a geosynchronous station would be constructed. A single space elevator cable dropped to the surface of the Earth, and a counterbalance... more
                      • Slow Boat versus Hot Rod to the starsEx-News Junkie, Sat Nov 4 11:52pm
                        Slow Boat Hot Rod Limiting Factor ok X propellant ok X shielding ok X refuel/resupply ok ok maintenance ok ok geometry & structural stability X ok g-forces X ok freedom of movement of passengers and... more
                        • Starship Size ComparisonEx-News Junkie, Mon Nov 6 6:17pm
                          Below is a comparison of the sizes of a Space Elevator Ring, and a Starship Ring, neatly sandwiched between the Earth and the Moon's orbit. Image is to scale in units of km.
                          • Some professional stuffEx-News Junkie, Sat Nov 11 5:40pm
                            Science Magazine Abstract ... "We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The... more
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