Empirical Limits to Antigravity

Experimental limits on antigravity in extended supergravity

The available tests of the equivalence principle constrain the mass of the Higgslike boson appearing in extended supergravity theories. We determine the constraints imposed by the present and future high precision experiments on the antigravity fields arising from N = 2, 8 supergravity.

Guidelines to Antigravity*

This paper emphasizes certain little known aspects of Einstein's general theory of relativity. Although these features are of minor theoretical importance, their understanding and use can lead to the generation and control of gravitational forces. Three distinctly different nonNewtonian gravitational forces are described. The research areas which might lead to methods for the control of gravita...

The limits to empirical ethics

Exact relativistic ‘antigravity’ propulsion

The Schwarzschild solution is used to find the exact relativistic motion of a payload in the gravitational field of a mass moving with constant velocity. At radial approach or recession speeds faster than 1/ 2 3 times the speed of light, even a small mass gravitationally repels a payload. At relativistic speeds, a suitable mass can quickly propel a heavy payload from rest nearly to the speed of...

Antigravity hills are visual illusions.

Antigravity hills, also known as spook hills or magnetic hills, are natural places where cars put into neutral are seen to move uphill on a slightly sloping road, apparently defying the law of gravity. We show that these effects, popularly attributed to gravitational anomalies, are in fact visual illusions. We re-created all the known types of antigravity spots in our laboratory using tabletop ...