Peter Grundmann (3)

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| Want to test batteries or solar panels? You need a load resistor. With this electronic load resistor project, you can not only simulate a lo...

| Styrofoam (aka expanded polystyrene foam in the UK) is widely used in model making and domestic crafts. When it comes to carving it into the...

| If the Stairway to Heaven was fitted with lights I guess they would look something like this… Each step is softly illuminated in sequence by...