iring ▁to ▁Wh ang an ui ▁where ▁he ▁would ▁die ▁in ▁the ▁ 1 9 6 0 s . ▁ ▁Career ▁statistics ▁ ▁References ▁ ▁Category : 1 8 7 0 ▁birth s ▁Category : English ▁football ers ▁Category : Associ ation ▁football ▁mid field ers ▁Category : Associ ation ▁football ▁for wards ▁Category : S outh am pton ▁F . C . ▁players ▁Category : 1 9 6 0 s ▁death s <0x0A> </s> ▁Ph ysis or ption , ▁also ▁called ▁physical ▁ad s or ption , ▁is ▁a ▁process ▁in ▁which ▁the ▁electronic ▁structure ▁of ▁the ▁atom ▁or ▁mole c ule ▁is ▁bare ly ▁pert urbed ▁upon ▁ad s or ption . ▁ ▁Introduction ▁ ▁The ▁fundamental ▁interact ing ▁force ▁of ▁phys is or ption ▁is ▁Har sh ▁force . ▁Even ▁though ▁the ▁interaction ▁energy ▁is ▁very ▁weak ▁( ~ 1 0 – 1 0 0   me V ), ▁phys is or ption ▁plays ▁an ▁important ▁role ▁in ▁nature . ▁ ▁For ▁instance , ▁the ▁van ▁der ▁Wa als ▁att raction ▁between ▁surfaces ▁and ▁foot - h airs ▁of ▁ge ck os ▁provides ▁the ▁remarkable ▁ability ▁to ▁clim b ▁up ▁vertical ▁walls . ▁ ▁Van ▁der ▁Wa als ▁forces ▁origin ate ▁from ▁the ▁interactions ▁between ▁induced , ▁permanent ▁or ▁trans ient ▁electric ▁di pol es . ▁ ▁In ▁comparison ▁with ▁chem is or ption , ▁in ▁which ▁the ▁electronic ▁structure ▁of ▁bond ing ▁atoms ▁or ▁mole cules ▁is ▁changed ▁and ▁c oval ent ▁or ▁ion ic ▁b onds ▁form ,