Already the difficulties of avoiding a collision in a crowd are enough to tax the sagacity of even a well-educated Square; but if no one could calculate the Regularity of a single figure … all would be chaos and confusion, and the slightest panic would cause serious injuries.
From Abbott’s Flatland
10.1a What Are van der Waals Forces?
This chapter is concerned with one of the most important forces in surface and colloid chemistry, namely, van der Waals forces between atoms, molecules, or particles. These forces have their origin in the dipole or induced-dipole interactions at the atomic level and are therefore of extreme importance in almost all aspects of the study of materials. The strength of van ...