jeff@rtech.UUCP (Jeff Lichtman) (10/23/85)
> > By the way: heat causes metal to expand. If you have a piece of metal > with a spherical hole in it, does the hole expand, contract, or remain > the same when the metal is heated? What about a square hole? I don't > know the answer! > > ...ranjit bhatnagar The hole will expand. When an object expands because of heat, it turns into a larger version of the object. That is, the coefficient of expansion is the same in all directions (for most substances), so the object must expand uniformly. -- Jeff Lichtman at rtech (Relational Technology, Inc.) "Saints should always be judged guilty until they are proved innocent..." {amdahl, sun}!rtech!jeff {ucbvax, decvax}!mtxinu!rtech!jeff