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Katherine Johnson, the Hidden Figures Mathematician Who Got Astronaut John Glenn Into Space

The NASA technologist received the IEEE President’s Award for her work on Apollo 11

4 min read
Mrs. Katherine G. Johnson at Work at NASA Langley
Johnson, once known as a human computer, reviews calculations done by a physical computer, at NASA’s Langley laboratory.
Photo: NASA

THE INSTITUTEKatherine G. Johnson’s mathematical calculations of orbital mechanics at NASA were critical to the success of Friendship 7 and several other U.S. human spaceflights. She was one of the women featured in the 2016 Oscar-nominated film Hidden Figures.

IEEE last month recognized her work with its President’s Award, “for fundamental computational contributions to the success of American’s first and subsequent manned spaceflights, including Apollo 11.” Johnson, who turned 100 in August, was unable to travel to the ceremony. Her daughters, Katherine Goble Moore and Joylette Goble Hylick, accepted the award on her behalf at the IEEE Honors Ceremony, held on 17 May in San Diego. Johnson “has a real passion for learning, and always aspired to teach others everything she knew,” Hylick said. You can watch the presentation on IEEE.tv.

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Digging Into the New QD-OLED TVs

Formerly rival technologies have come together in Samsung displays

5 min read
Television screen displaying closeup of crystals

Sony's A95K televisions incorporate Samsung's new QD-OLED display technology.

Sony
Blue
Televisions and computer monitors with QD-OLED displays are now on store shelves. The image quality is—as expected—impressive, with amazing black levels, wide viewing angles, a broad color gamut, and high brightness. The products include:

All these products use display panels manufactured by Samsung but have their own unique display assembly, operating system, and electronics.

I took apart a 55-inch Samsung S95B to learn just how these new displays are put together (destroying it in the process). I found an extremely thin OLED backplane that generates blue light with an equally thin QD color-converting structure that completes the optical stack. I used a UV light source, a microscope, and a spectrometer to learn a lot about how these displays work.

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