Q&A: Kári Stefánsson Says Medical Privacy Is Overrated

Our reluctance to share our medical data isn’t just preventing breakthroughs, it’s “morally unacceptable”

2 min read
Illustration of Kári Stefánsson.
Illustration: Jacob Thomas

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img Illustration: Jacob Thomas

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Print an Arduino-Powered Color Mechanical Television

Anyone with a 3D printer can make a new twist on the oldest type of TV

5 min read
A disk with a spiral of holes is mounted on a motor. Buttons and switches form a control panel below it.

Early 2020s 3D printing meets late 1920s mechanical television.

James Provost

Before flat screens, before even cathode-ray tubes, people watched television programs at home thanks to the Nipkow disk. Ninety years ago in places like England and Germany, broadcasters transmitted to commercially produced black-and-white electromechanical television sets, such as the Baird Televisor, that used these disks to produce moving images. This early programming established many of the formats we take for granted today, such as variety shows and outside broadcasts.

The size and weight of a Nipkow disk makes a display with more than a few dozen scan lines impracticable (in stark contrast to modern screens with thousands of lines). But when a mechanical TV is fed a moving image, the result is surprisingly watchable. And Nipkow displays are fascinating in their simplicity—no high voltages or complex matrices. So I wondered: What was the easiest way to build such a display that would produce a good quality image?

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World Builders Put Happy Face On Superintelligent AI

The Future of Life Institute’s contest counters today’s dystopian doomscapes

4 min read
A cityscape ensconced in an iridescent dome of light and shapes.
Hiroshi Watanabe/Getty Images

One of the biggest challenges in a world-building competition that asked teams to imagine a positive future with superintelligent AI: Make it plausible.

The Future of Life Institute, a nonprofit that focuses on existential threats to humanity, organized the contest and is offering a hefty prize purse of up to US $140,000, to be divided among multiple winners. Last week FLI announced the 20 finalists from 144 entries, and the group will declare the winners on 15 June.

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Modeling Microfluidic Organ-on-a-Chip Devices

Register for this webinar to enhance your modeling and design processes for microfluidic organ-on-a-chip devices using COMSOL Multiphysics

1 min read
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Comsol

If you want to enhance your modeling and design processes for microfluidic organ-on-a-chip devices, tune into this webinar.

You will learn methods for simulating the performance and behavior of microfluidic organ-on-a-chip devices and microphysiological systems in COMSOL Multiphysics. Additionally, you will see how to couple multiple physical effects in your model, including chemical transport, particle tracing, and fluid–structure interaction. You will also learn how to distill simulation output to find key design parameters and obtain a high-level description of system performance and behavior.

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