rotating cylinders possibility global causality di tipler frank (1 risultati)

Soft cover. Condizione: Very Good. Tipler, Frank. "Rotating Cylinders and the Possibility of Global Causality Violation" in:  Physical Review, D. 9 (8), 15 April 1974: 2203 2206 in the issue of pp2203-2494. Original wrappers. Original owner's name in faded paint on top front wrapper. VG/Fine copy. [++] "A Tipler cylinder, also called a Tipler time machine, is a hypothetical object theorized to be a potential mode of time travel although results have shown that a Tipler cylinder could only allow time travel if its length were infinite or with the existence of negative energy. The Tipler cylinder was discovered as a solution to the equations of general relativity by Willem Jacob van Stockum in 1936 and Kornel Lanczos in 1924, but not recognized as allowing closed timelike curves until an analysis by Frank Tipler  in 1974. Tipler showed in his 1974 paper [offered here], "Rotating Cylinders and the Possibility of Global Causality Violation" that in a spacetime containing a "sufficiently large rotating cylinder which was spinning along its longitudinal axis, the cylinder should create a frame-dragging effect. This frame-dragging effect warps spacetime in such a way that the light cones of objects in the cylinder's proximity become tilted, so that part of the light cone then points backwards along the time axis on a spacetime diagram. Therefore, a spacecraft accelerating sufficiently in the appropriate direction can travel backwards through time along a closed timelike curve."--Wikipedia.