Julián Castro

Julian Cástro is the mayor of the City of San Antonio

  • Invest in American Brainpower

    Too many high-tech companies rely on talented immigrants to fill jobs in the digital economy. Immigration is important, but we also need homegrown talent.

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Where Time Comes From

The clocks that coordinate your cellphone, GPS, and more

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Computer Vision Syndrome and You

Save your eyes. Take breaks.

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What Happens in 60 Seconds

Quantifying human activity around the world

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