Articles of interest
The theory of relativity, or simply relativity in physics, usually encompasses two theories by Albert Einstein: special relativity and general relativity. (The word relativity can also be used in the context of an older theory, that of Galilean invariance.) Concepts introduced by the theories of relativity include: Measurements of various quantities are relative to the velocities of observers. In particular, space and time can dilate.Spacetime: space and time should be considered together and in relation to each other.The speed of light is nonetheless invariant, the same for all observers.
A neutrino (/nuːˈtriːnoʊ/ or /njuːˈtriːnoʊ/) is an electrically neutral, weakly interacting elementary subatomic particle with half-integer spin. Neutrino
Biocentrism (cosmology) Biocentric universe (from Greek: βίος, bios, "life"; and κέντρον, kentron, "center") — also known as biocentrism — is a concept proposed in 2007 by American doctor of medicine Robert Lanza, a scientist in the fields of regenerative medicine and biology, which sees biology as the central driving science in the universe, and an understanding of the other sciences as reliant on a deeper understanding of biology.
Signs of ageing halted in the lab 2 November 2011Last updated at 14:01 ET By James Gallagher Health reporter, BBC News