Another function of the jig is to steady the piece of wood being cut to prevent excess cutting or inaccurate cuts. The size, shape, and function of a woodworking jig will vary significantly according to how it is being used and with what tool it is being used.
WMAP image of the (extremely tiny) anisotropies in the cosmic background radiation. Anisotropy /ËÃ¦naÉªËsÉtrÉpi/ is the property of being directionally dependent, which implies different properties in different directions, as opposed to isotropy.
In this case, we deal not with thermal conduction in a gas, but with heat exchange between the bodies in it. Among solid, anisotropic substances (e.g., crystals, sedimentary rocks, lamellar and pyrolytic materials) occur for which the heat flux density vector does not coincide with the normal to an isothermal surface.