标题:AI researchers receive the Nobel prize for physics

The award, to Geoffrey Hinton and John Hopfield, stretches the definition of the field

正文：Nobel science prizes are awarded in three areas: physics, chemistry and physiology or medicine. But occasionally some noteworthy discovery comes along that does not really fit into any of them. In 1973, for example, three pioneering students of animal behaviour, who worked on honeybees, geese and sticklebacks, were shoehorned into the physiology category.

知识点：chemistry n.

the scientific study of the structure of substances, how they react when combined or in contact with one another, and how they behave under different conditions化学

a degree in chemistry化学学位

the university's chemistry department那所大学的化学系

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