They revealed the nature of equilibrium and the factors that control the direction of spontaneous change ... between theory and experiment at the core of physical chemistry.

In this classic experiment, light was passed through two physical slits ... providing tools that change everything from the ...

For example, melting point, electrical conductivity, appearance at room temperature. - in a physical change, a substance simply changes physical state. For example, from a solid to a liquid.

Dr Matthew Cocks from Liverpool John Moores University helped set up an experiment in which 13 volunteers of varied age and fitness were asked to change ... reduced their physical activity to ...