Abstract: This disclosure describes manufacture of a mixture and use of same to fabricate different types of electronic components. In one configuration, the mixture includes: first particles, the first particles being an insulator material; second particles, the second particles being electrically conductive metal material; and a combination of the first particles and the second particles suspended in a printable liquid medium, the printable liquid/solid medium (slurry) being curable into a dielectric layer of material. According to one configuration, the printable material is disposed and cured on a substrate. The first particles and second particles are randomly distributed in the cured printed material (dielectric material). The second particles in the cured dielectric material are transformable into one or more electrically conductive paths, electronic components, etc., via application of heat above a threshold value.

Abstract: A method of digital assessment of chemical dip tests is disclosed. A photograph of a dip tester including a colour change pad is taken with a mobile device, for example a mobile phone. The dip tester is photographed on or alongside a reference card, with both the dip tester and the reference card in the same frame. A processor on the mobile device analyses the photograph thus obtained to determine a value for a characteristic of water being tested. The characteristic may be for example, pH, concentration of iron, concentration of copper. The water may be central heating system water.