Dr. Crawford W. Long applied his social observations with ether to surgery well before Morton’s discovery. During his time in Philadelphia, it was tasteful among young socialites to inhale gases such as sulphuric ether to induce euphoria. During one such “ether frolics”, Long observed an attendee take a heavy fall but display no indication of pain. With this reference, he performed his first surgical procedure using the gas on March 30, 1842, when he removed a tumor from the neck of a young man who did not feel any pain.
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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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