Water boils and melts at unusually high temperatures because of the size of the water molecule the weight of the water molecule the polar structure of the water molecule and hydrogen bonding gravity volcanic activity

Boil:100c
freeze:0c
now do you need anything else

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