BODY, in geometry,. a figure extend ed in all directions, or what is usually_ said to consist of length, breadth, and thickness It is usually called a solid. A solid or body is conceived to be formed by the motion of a surface ; as a surface is by the motion of a line ; and a line by the motion of a point. Similar bodies are in proportion to each other as the cubes of their sides. There are five bodies which are denominated regular or Pla tonic bodies : these have all their sides, angles, and planes, similar and equal ; they are denominated the , Tetraedron 1 _., (4 equilateral trian Hexaedron I _ gles or cube 1 6 squares Octaedron r.,=,.. 8 triangles Dodecaedron i '5I 12 pentagons Icosaedron J 8 t.20 triangles In the plate Miscel. II. fig. 1 to 5, we have given the figures of each, which, if drawn on pasteboard, and cut out by the bounding lines, and then the other lines being half' cut through, the parts may be turned up and fastened together by strong paste, so as to form the respective body marked with the corresponding number. Fig. 1 is the tetraedron : fig 2. the hex aedron : fig. 3. the octaeclron : fig. 4 the dodecaedron, and fig. 5 the icosaedron.
To find the superficies or solidity of the gular bodies.
1. Multiply the proper tabular area (ta ken from the following table) by the square of the linear edge of the solid, for the superficies.
2. Multiply the tabular solidity by the cube of the linear edge, for the solid con tent.
. ' Bobras, descent of. Heavy bodies, in an unresisting medium, fall with an uniform ly accelerated motion ; whence the spaces descended are in the duplicate ratio of the times and velocity, and in crease according to the uneven numbers 1, 3, 5, &c. The times and velocities are in a subduplicate ratio of the spaces. The velocity of descending bodies is in proportion to the times from the begin ning of their fall ; and the spaces des cribed by a falling body are as the squares of the times from the beginning of their fall. See MECHANICS.
Bona, in law. A man is said to be bound or held in body and goods ; that is, he is liable to remain in prison, in de fault of payment.
In France, all restraints of the body for civil debts are mill after four months, unless the sum exceeds two hundred li vres.
A woman, though in other respects she cannot engage her person but to her hus band, may be taken by the body, when she carries on a separate trade.