From the foreword by Dr. rer. pol. Erik Kolek It will also deal with the quantity of light and the speed of light. New equations based on Albert Einstein will be introduced. It will be shown that the speed of light has no limit. The theory of heat is illustrated using temperature. Electrons, i.e. charged particles, cannot reach the speed of light. It also deals with radiation from neutron stars and black holes. Planar gravitational waves are discussed in this context. A new determination of molecular dimensions can be calculated more precisely.