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Marlyn Meltzer was born as Marlyn Wescoff. After graduating from Temple University in 1942, she was hired by the Moore School of Engineering of the University of Pennsylvania to perform weather calculations as she knew how to operate an adding machine. In 1943, she was hired to calculate ballistics trajectories. The Moore School at UPenn was funded by the US Army during the Second World War. Here a group of about 80 women worked manually calculating ballistic trajectories – complex differential calculations. These women were called ‘computers’. In 1945, the Army decided to fund an experimental project – the first all-electronic digital computer and six of the women ‘computers’ were selected to be its first programmers. Among these six was Marlyn Meltzer.
The ENIAC was the first all-electronic digital computer, a huge machine of forty black 8-foot panels. The programmers had none of the programming tools of today and it was a challenge to make the ENIAC work. The six programmers had to physically conduct the ballistic program using 3000 switches and dozens of switches and digital trays to route the data and program pulses through the machine. Marlyn Meltzer was in a special team with Ruth Teitelbaum within the ENIAC project. They used analog technology to calculate ballistic trajectory equations. In 1946, the ENIAC computer was unveiled before the public and the press. The six women were the only generation of programmers to program the ENIAC. Though mentioned in the Woman of the ENIAC, Marlyn Meltzer and the other women did not receive due recognition at the time.
Happy Ada Lovelace Day! Today, in honor of Ada Lovelace, the world celebrates all of the accomplishments of women in science, art, design, technology, engineering, and math. Each year, Adafruit highlights a number of women who are pioneering their fields and inspiring women of all ages to make their voices heard. Today we will be sharing the stories of women that we think are modern day “Adas” alongside historical women that have made impacts in science and math.
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.