The rock, known as the Saint-Bélec Slab, is from France and is believed to date from the early Bronze Age, between 1900 BCE and 1650 BCE. It was initially discovered during digs of a prehistoric burial ground in Finistère (western Brittany) by local archaeologist Paul du Chatellier in 1900 CE. After his death, the archaeologist’s collection was donated to the National Archaeological Museum of Saint-Germain-en-Laye. The slab lay forgotten in its cellar until 2014 when several scholars studied du Chatellier’s writings and went in search of the artifact in the museum’s cellar.
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.