Abstract: The invention relates to a thermoelectric structural element (9) for generating thermoelectric power that is formed by at least two layers (1, 2) and two metallic electrical contacts (4, 5). The layers (1, 2) contain mixtures primarily of chalk and quartz sand, with the layers (1, 2) comprising different mixtures. Using different thicknesses of the metallic electrical contacts (4, 5) and the layers (1, 2), the thermoelectric structural element (9) can be produced, inter alia, as a facade panelling, masonry wall element or wallpaper. The invention also relates to a method for producing a thermoelectric structural element (9).

Abstract: The invention relates to the creation of a safe screw top for bottles, which prevents unauthorized and indiscernible opening and reclosing of the bottles. According to the invention, this object is achieved in that a cylinder is disposed at the base coaxially to the casing.