An exploration of how Global Positioning Systems translate time into distance to determine location. The article explains the fundamental mechanics of trilateration, why a fourth satellite is required to correct for imperfect consumer clocks, and how Einstein's theories of special and general relativity must be accounted for to prevent massive positioning errors.
Researchers at General Atomics have made a significant breakthrough in nuclear fusion by achieving plasma density 20% higher than the Greenwald limit while maintaining superior confinement. This advancement addresses major challenges in fusion reactor design, bringing us closer to the development of commercially viable fusion power.
