What is the science of analyzing small objects called ?
Drag ( physics ) , the force which resists motion of an object through a fluid Drag equation , a mathematical equation used in analyzing the magnitude of drag caused by fluid flow Drag coefficient , a non-dimensional coefficient that is one of the terms in the drag equation Aerodynamic drag , the aerodynamic force which resists motion of an aircraft or other object through the air Drag crisis , a rapid change in drag coefficient over a small range of Reynolds number Park drag , a type of carriage Police drag , a small dredge used to recover objects or bodies lost in shallow water Drag harrow , in agriculture , a heavy type of harrow used to break up soil Drag system , a mechanical means of applying variable pressure to a fishing rod reel in order to act as a friction brake In computing , to hold down a mouse button while moving the mouse , as in drag - and - drop