Alessandro Volta was an Italian scientist whose skepticism of Luigi Galvani’s theory of animal electricity led him to propose that an electrical current is generated by contact between different metals. Volta’s theoretical and experimental work in this area resulted in his construction of the first battery. Known as the voltaic pile, Volta’s battery made available for the first time a sustainable source of electrical current. Using the innovative apparatus, a number of his contemporaries, such as William Nicholson and Sir Humphry Davy, made important scientific advances in the early 19th century.
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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.
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