Dr José Carlos Rubio, researcher at Universidad Michoacana de San Nicolas de Hidalgo in Morelia, Mexico, has found a creative solution to light streets and highways in the evening without using power: cement.

By modifying the fine structure of cement, Dr Rubio has produced a variety that appears to glow in the dark. His cement without crystal flakes can absorb sun-powered energy and radiate it as light during the evening for up to 12 hours, reducing the use of electricity.