In an age of streaming media it’s easy to forget the audio CD, but they still remain as a physical format from the days when the “Play” button was not yet the “Pay” button. A CD player may no longer ...

Building radio receivers from scratch is still a popular project since it can be done largely with off-the-shelf discrete components and a wire long enough for the bands that the radio will receive.

Dans le domaine de l'agroenvironnement, l'innovation est essentielle. Les progrès scientifiques et techniques ont amélioré la pratique quotidienne des métiers agricoles et ont donné aux producteurs la ...