CAN SOMEONE PLEASE HELP ME

The particles are moving very fast, yet are very far from each other in the gas or vapour state. After condensation they slow a bit down and move closer together. Finally when frozen the particles are almost stuck together and they barely move/vibrate.

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later