Sasha grey - wikipedia, free encyclopedia, Sasha grey (born marina ann hantzis march 14, 1988) is an american former pornographic actress who has since crossed over as a mainstream actress, model, author and. Definitions units units measurement, And other units of measurement the following glossary of si units and other units is far from complete, but does cover the main units used today and all the units. Why hair turn gray? everyday mysteries:fun science, Why does hair turn gray? it is well known that gray hair results from a reduction of pigment, while white.