This interactive site lets you explore how a mechanical watch operates
Mechanical watches are powered by a mainspring. Until the quartz revolution of the 1970s, all watches were mechanical. Via BoingBoing
Mechanical Watch is a site by Bartosz Ciechanowski that allows users to explore how a mechanical watch works through various interactive diagrams. The hands-on approach that comes with each piece of information here makes it much more fun to learn about. If you’re a visual learner (like me), this website will be a great way to learn more about mechanical watches.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.