Theoretical physics concentrates on developing the theory and mathematics of these laws, while applied physics focuses attention on the application of the principles of physics to practical problems. ...Theoretical physics concentrates on developing the theory and mathematics of these laws, while applied physics focuses attention on the application of the principles of physics to practical problems. These include astrophysics (physics of astronomy), geophysics (physics of geology), biophysics (physics of biology), chemical physics (physics of chemistry), and mathematical physics (mathematical theories related to physics).
Surface Force Apparatus is an instrument that allows for very precise measurement of distance between interacting surfaces, as well as the forces of the interaction. When speaking of measuring molecul...Surface Force Apparatus is an instrument that allows for very precise measurement of distance between interacting surfaces, as well as the forces of the interaction. When speaking of measuring molecular interactions, most people use affinity as a measure of strength. That is not true, as affinity only shows how likely it is for the bond to form, and not how physically strong it is. Few techniques exist that allow for a direct measurement of force, and Surface Force Apparatus is one of them.
