Best of Last Week–Variance of gravitational constant, 50 years of Moore's Law and creating the sensation of invisibility

It was an interesting week in physics as researchers delved into the question of why the measurements of the gravitational constant vary so much. The latest theory suggests that it is not likely attributable to systematic errors, but to "something else." Also researchers at the University of Rochester found a way to generate broadband terahertz radiation from a microplasma in the air—they report that they exploited the underlying physics to lower the laser power necessary for plasma generation.

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