In 1969, medical researchers at NASA’s Ames Research Center were referred an unusual patient: a local California woman who had given birth to a healthy baby, but who kept hemorrhaging dangerous amounts of blood.
While doctors at Stanford University Hospital gave the hemorrhage patient a blood transfusion, engineers at the space agency brainstormed solutions to stop the bleeding. They decided to try an anti-gravity suit—typically used to keep astronauts from blacking out during extreme acceleration by squeezing the arms and legs to push blood back towards the head—to apply external pressure to the woman’s lower body and drive blood upward. It was a success, and the woman’s life was saved.
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, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, 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.