Michiu Kaku on why Einstein is still right, the “faster than light” neutrinos are wrong
Last year, when it appeared that neutrinos had been observed going faster than the speed of light, all hell broke loose in the physics world. Not to worry, here’s Michiu Kaku explaining why you shouldn’t worry.
Submitted by Delsyd
(via theandalusiandog)
Authors: S.A. Yost, V.V. Bytev, M.Yu. Kalmykov, B.A. Kniehl
Higher-order diagrams required for radiative corrections to mixed electroweak and QCD processes at the LHC and anticipated future colliders will require numerically stable representations of the associated Feynman diagrams. The hypergeometric representation supplies an analytic framework that is useful for deriving such stable representations. We discuss the reduction of Feynman diagrams to master integrals, and compare integration-by-parts methods to differential reduction of hypergeometric functions. We describe the problem of constructing higher-order terms in the epsilon expansion, and characterize the functions generated in such expansions.
Time and the Brain. Eagleman: ‘Time is not just as a neuronal computation—a matter for biological clocks—but as a window on the movements of the mind’
“Instead of reality being passively recorded by the brain, it is actively constructed by it.”
— David Eagleman, …
