Tag Archives: physics

Progress in Physics

LHC’s Lack of Black Holes Rules Out Some Versions of String Theory

the LHC doesn’t seem to be making black holes at all—their decay signature is markedly absent from the data collected so far.

[This is] helping physicists make up their minds about how many dimensions there are in our universe. The lack of black holes at the LHC nullifies some of the wackier versions of string theory which depend on multiple dimensions.

Back at work after 36 years

Lost Rover Found on Moon With Retroreflector Still Intact.

The rediscovery of the reflector could have an important impact in several areas of science that depend on accurately measuring the position and orbit of the Moon. Laser rangefinding currently provides the most precise tests of many aspects of gravity, including the strong equivalence principle, the constancy of Newton’s constant, geodetic precession, gravitomagnetism and the inverse square law.

Technical details at Laser Ranging to the Lost Lunokhod~1 Reflector.