Interactively visualizing data warehouses.

A clothes washer includes a lid formed by a first member hinged to a housing of the clothes washer, and a second member hinged to the first member. The first and second members are folded together when the lid is opened, and are unfolded when the lid is closed. A motor-driven lid opening/closing mechanism is provided for opening and closing the lid. That mechanism includes a motor-driven rotary cam member mounted on the housing, and a following member fixed to the first member of the lid. During rotation in one direction, the cam member engages the following member to open the lid, and during rotation in the opposite direction, the cam member engages the following member to close the lid. When the lid is in the closed and open states, the cam member is disengaged from the following member to enable the lid to be manually opened and closed.