I remember writing as a kid in the mid ’70s to an electronics magazine well-known in Italy, Nuova Elettronica, asking them to publish the project of a device to display music on a TV like on an oscilloscope. They did not reply but eventually they published the project. I’m not sure I’m the one who [...]

I was 6 years old when man reached the moon. I barely remind those days : sure they must have been very exciting for those in the age of reason. Today I’m looking back at that accomplishment as the result of spirit of adventure, bravery, stupidity, lack of common sense, careful betting and something more, [...]

Most modern energy meter have one or more LEDs which blink at a rate directly related to the energy used. The one above has two of them : one pulses at 1000 pulses per active kWh, the other one pulses at 1000 pulses per reactive kWh. I dealed with the active power only, event though [...]