Abstract: An electronic game player (1) for playing bingo, keno and other similar games stores information corresponding to information on at least one game ticket for the game being played. The game player (1) comprises a keypad (4) for entering numbers into the game player via a single keystroke and for performing other functions (13-16) relating to the game. The game player (1) further comprises a screen (5) for displaying data relating to the game and the components of the game player are accommodated in a hand-held housing (1a).

Abstract: A solar still apparatus is described for the multi-effect distillation of a fluid such as water. A transparent condenser air duct overlies an evaporator air duct having a light-absorbing floor, both sharing a transparent plastic film wall. Air, blown by a fan, flows through the lower duct, where it progressively warms and evaporates a feedstock fluid. At the hot end of the lower duct, the air enters the upper duct where it flows in a reverse direction, progressively cooling and condensing its vapor, a portion of the heat of condensation being transferred through the shared wall to the lower duct. Thermal gradients established within the still facilitate the evaporation and condensation of the fluid with minimal heat loss to the environment and maximal recuperation of the heat of condensation for fluid evaporation. A working fluid may be used to extract useful power from the still's thermal gradients.

Abstract: An apparatus for dampening standing wave pattern generation in a closed cavity of a microwave oven, includes a fluid table having an enclosure made of a microwave energy transparent material, such as plastic, and a structure, such as top flat platform held in place by the enclosure, for defining a processing surface for placement thereupon of samples to be processed, and a quantity of dielectric fluid contained by the enclosure so as to provide a large flat surface of the dielectric fluid beneath the flat platform and thus below the processing surface. The apparatus also includes mechanisms for recirculating the dielectric fluid to and from the enclosure and for cooling the dielectric fluid to maintain the dielectric fluid within a given narrow range of temperatures.

Abstract: An apparatus for dampening standing wave pattern generation in a closed cavity of a microwave oven, includes a fluid table having an enclosure made of a microwave energy transparent material, such as plastic, and a structure, such as top flat platform held in place by the enclosure, for defining a processing surface for placement thereupon of samples to be processed, and a quantity of dielectric fluid contained by the enclosure so as to provide a large flat surface of the dielectric fluid beneath the flat platform and thus below the processing surface. The apparatus also includes mechanisms for recirculating the dielectric fluid to and from the enclosure and for cooling the dielectric fluid to maintain the dielectric fluid within a given narrow range of temperatures.