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Cake day: June 22nd, 2024

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  • For completing your nice explanation, here is the DeepL translation of the section in German Wikipedia on micro accelerometers:

    In recent years, miniaturised acceleration sensors have become increasingly important. These are micro-electro-mechanical systems (MEMS) and are usually made of silicon. These sensors are spring-mass systems in which the “springs” are silicon bars only a few μm wide and the mass is also made of silicon. Due to the deflection during acceleration, a change in electrical capacitance can be measured between the spring-mounted part and a fixed reference electrode. The entire measuring range corresponds to a capacitance change of approx. 1 pF. The electronics for analysing this small change in capacitance are housed on the same integrated circuit (IC).

    There are also variants in which piezoresistive resistors are attached to the bending beam by ion implantation, which change their resistance according to the bending and thus allow conclusions to be drawn about the acceleration.
















  • Don’t forget people:
    NIMBYs who protest against the Verspargelung of the landscape in case a new wind power plant is planned to be constructed. People protesting against roads being built through the ‘beautiful’ fir monoculture they use to call forrest. Some esoteric aunts who feel the water adder in their home being disrupted or fear ‘electro smog’, infrasound or drop shadow. Or environmentalists who are afraid that some bird will be shred to pieces. Eliminating all these concerns or ensuring improvement takes endless time and money.

    Is a company builds a new fossil power plant as a replacement next to an existing one, everybody is happy because it’s supposed to be cleaner. Sure, some environmentalists will also find that the habitat of an endangered species is going to be destroyed. But then the company can create a replacement somewhere near and the concerns of the environmentalists are relieved.