Abstract: This invention concerns a process and device for storing foodstuffs, plants, meat and other organic substances in which the products to be stored are held in a hermetically sealed cold chamber with no apertures, where the temperature is even everywhere and lies in the range from +0.5.degree. to -0.5.degree. C. The device has at least one chamber (1) which can be hermetically sealed by a cover, whereby the chamber (1) and the cover (12) are bordered by double walls enclosing sealed spaces (2, 6) and the sealed spaces (2, 6) are in mutual heat-conducting communication, the inner of the double walls is preferably made of plastic and the sealed spaces (2, 6) are filled with a refrigerated, non-freezing fluid and 10 the outside of the double wall is lagged (3).

Abstract: A logic toy for distinctive indication of bordering zones on a surface, especially existing administrative districts, such as countries, facilitating herewith the development of logic way of thinking and depth perception together with the memorization of colored vision or other kind of signalling. The body of the logic toy is for example a parallelepiped, a sphere or globe or the like, the surface thereof is divided into separated zones, whereby the body is provided with built-in signalling means for displaying a signal simultaneously for each separated zone. Comparing the logic toy according to the invention to the known logic toys, such as the magic cube or the like, it means in each occasion a new logic task to be solved, therefore the playing can not become a routine work. Furthermore, a given task can be solved in different ways, and the tasks can be made gradually more and more complicated.