body

In physics, a physical body or physical object (or simply a body or object) is an identifiable collection of matter, which may be constrained by an identifiable boundary, and may move as a unit by translation or rotation, in 3-dimensional space. In common usage, an object is a collection of matter within a defined contiguous boundary in 3-dimensional space. The boundary must be defined and identified by the properties of the material. The boundary may change over time. The boundary is usually the visible or tangible surface of the object. The matter in the object is constrained (to a greater or lesser degree) to move as one object. The boundary may move in space relative to other objects that it is not attached to (through translation and rotation). An object's boundary may also deform and change over time in other ways. Also in common usage, an object is not constrained to consist of the same collection of matter. Atoms or parts of an object may change over time.
the human body - a useful help to children to learn the human body
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the human body

Added 4 days ago by francesca

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the human body - a fun way to teach children the parts of the body.
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the human body

Added 4 days ago by francesca

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BIRD BODY PARTS - THE PARTS OF THE BODY: BECCO, ZAMPE, ALI, CORPO
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BIRD BODY PARTS

Added 2 months ago by CATE

201

Human Body - the human body interactive puzzle for children
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Human Body

Added 2 months ago by Caterina

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The body of a man - The human body - Italian words, Italian learning
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The body of a man

Added year ago by corpo

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