Trip Back In Time XXX

Description:This effect cannot be used to send any matter, energy, or information faster than light, [50] so this experiment is understood not to violate causality either. However, the mechanism borders on fantasy. There exist exact solutions to these equations that include closed time-like curves , which are world lines that intersect themselves; some point in the causal future of the world line is also in its causal past, a situation which is akin to time travel. General relativity treats the effects of acceleration and the effects of gravity as equivalent , and shows that time dilation also occurs in gravity wells , with a clock deeper in the well ticking more slowly; this effect is taken into account when calibrating the clocks on the satellites of the Global Positioning System , and it could lead to significant differences in rates of aging for observers at different distances from a large gravity well such as a black hole. Physicist Ronald Mallett is attempting to recreate the conditions of a rotating black hole with ring lasers, in order to bend spacetime and allow for time travel.

Views: 6920 Date: 2018-09-16 Favorited: 28