ABSTRACT
Theories of special and general relativity represent a great revolution in our understanding of the structure of space and time, as well as of their role in the formulation of physical laws. While special relativity (SR) describes the influence of physical reality on the general properties of and the relation between space and time, the geometry of spacetime in general relativity (GR) is connected to the nature of gravitational interaction. Perhaps the biggest barrier to a full understanding of these remarkable ideas lies in the fact that we are not always ready to suspect the properties of space and time that are built into our consciousness by everyday experience.
