Abstract: A self cooling can has water on a pre-wetted wick (478), in a chamber and an adsorbent in another chamber communicable upon actuation of the can with the chamber. One or both of the chambers is at low pressure. Upon actuation the pressure of the wick drops, water vapour is absorbed by the adsorbent from the internal atmosphere and more water evaporates from the wick to replace it, thereby causing a cooling effect in heat generated in the adsorbent may be contained by but a take-up system, such as phase change material or microcapsules of high heat capacity material such as water.

Abstract: A game emphasizing the relationship between food consumption and exercise in weight control includes a game board for each player with a first series of playing positions representing calories gained and a second series of playing positions representing calories lost. A player draws a card from a pack of game cards and places it in an area in front of the word "EAT" printed on a portion of the game board. If the card drawn has a "F" printed on its face, the word "FEAT" is spelled out. Otherwise the word "EAT" remains. Dice are then thrown by the player. If the word "EAT" remains, by reference to a food portion of a chart printed on the game board, the dice count is related to a corresponding number of moves taken along the first series of playing positions. If the work "FEAT" has been spelled out, by reference to a feat portion of the chart, the dice count is related to a number of moves along the second series of playing positions.