A complete guide to James Comey’s Thursday Senate testimony.

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Algorithms that scrutinize retinal images for signs of disease could save people from blindness.

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This video shows a motorcycle traveling at a high speed narrowly avoiding a collision. Let’s use video analysis to estimate the acceleration and coefficient of friction.

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Visa tries to get out ahead of the day when physical forms of payment become as obsolete as barter.

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Amazon’s Alexa heads for a future that looks a lot like the Starship Enterprise.

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Urs Hölzle is the person Google’s engineers turn to when all that computing power turns out not to be enough.

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Yasmin Green heads R&D at Jigsaw, a think tank at Google’s parent company. Her radical strategy? Tackle the web’s dark side by talking to its creators.

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Christopher Wray, Trump’s nominee for FBI Director, spent years working with—and learning from—James Comey and Robert Mueller.

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I spend a day in my driveway looking for answers.

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Astronaut Tim Peake traveled into space and got addicted to photography.

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