Which of the following was NOT an idea of Democritus? * A grain of sand could be divided indefinitely, and there's no limit to how small a grain
of sand could be.
O Atoms are unchangeable, indestructible, and have always existed.
O
When atoms collide with one another, they might repel each other or might connect in
clusters
O
Atoms are indivisible.

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

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