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Figum 9. Two-way Time Machine<br />
ment" the neutron star tides to keep the combined tides near zero. As is shown in Figure 8, this was<br />
done with a two-mass tidal augmentor. This mass configuration gives no net gravity force at the point<br />
between them, so the orbital parameters of the object between the masses are not changed, but the<br />
accelerations at points away from the zero-force point increase in exactly the same way as the tidal<br />
accelerations above a single mass. A full explanation of tidal forces and how they can be compensated<br />
and augmented by arrangements of dense spheres can be found in an old paper on producing picogravity<br />
regions near the Earth.5<br />
The tidal forces of a neutron star, and the compensators and augmentors needed to cope with them,<br />
could have been understood by Newton, although he would have been amazed that such ultra-dense<br />
stars and machines could exist. The cheela have ultra-dense machines that are even more amazing. We<br />
know that the cheela machines use technology that goes beyond the Einstein theory of gravity, especially<br />
at the ultra-high densities, fields, and velocities that the highly advanced cheela are able to generate.<br />
The secrets to the fabrication of the ultra-dense machines of the cheela are still locked up behind their<br />
cryptographic code - in the HoloMem Crystals at the Smithsonian Museum. However, just as Newton's<br />
laws of gravity are still valid at low mass densities, Einstein's laws of gravity are still valid at<br />
high mass densities, and they can be used to give clues as to what might happen in the ultra-high density<br />
regions where the Einstein laws fail.<br />
The cheela had a time machine that allowed messages to be sent backward and forward in time. The<br />
Einstein General Theory of Relativity can be used to show how such a machine might be built, despite the<br />
paradoxes that such a machine would bring if itwere built. As is shown in Figure 9, if a long, ultra-dense<br />
cylinder is somehow rotated about its long axis until the peripheral velocity of the cylinder is greater than<br />
half the speed of light, then a simple analysis6shows that there should be a region near the middle of the<br />
cylinder, but outside the surface of the cylinder, where space and time are mixed up. By choosing a<br />
proper trajectory, an object or photon can be sent circling around the cylinder with or against the spin of<br />
the cylinder to emerge either in the past or the future. How the cheela managed to make a spinning<br />
ultra-dense cylinder and keep it elongated long enough to send messages is unknown.