Abstract: Systems and methods of pre-fetching map data are disclosed herein. In some example embodiments, a computer system determines that a network connectivity metric of a geographic area satisfies a predetermined criteria, with the network connectivity metric comprising a metric of ability of a computing device to communicate with a remote server via a network connection while the computing device is within the geographic area. The computer system causes a map data item corresponding to the geographic area to be downloaded from the remote server onto the computing device during a time at which the computing device is not located within the geographic area based on the determination that the network connectivity metric of the geographic area satisfies the predetermined criteria. The map data item is configured to be used by the computing device to display a visual representation of the geographic area on the computing device.

Abstract: A briquette, which is easily pierceable and supportable, comprises compacted particulate material and has an outer region (1) and an inner region (2), said inner region (2) being provided with a well (3) having a diameter which decreases progressively in a non-linear relationship with increasing distance from the top of the well such that the sides of the well extend convexly into the well. The briquette, preferably, is a rodenticide block although it may, instead, be a block for sanitary, and/or domestic use. The briquette may be manufactured by compacting particulate material into the nip between a first rotating roll, having a surface provided with a suitable mould, and a second, counter-rotating roll.

Abstract: A briquette, which is easily pierceable and supportable, comprises compacted particulate material and has an outer region (1) and an inner region (2), said inner region (2) being provided with a well (3) having a diameter which decreases progressively in a non-linear relationship with increasing distance from the top of the well such that the sides of the well extend convexly into the well. The briquette, preferably, is a rodenticide block although it may, instead, be a block for sanitary, and/or domestic use. The briquette may be manufactured by compacting particulate material into the nip between a first rotating roll, having a surface provided with a suitable mould, and a second, counter-rotating roll.