The Presidential Daily Brief


  1. Scientists Use YouTube to Study Russian Meteor

    Reaching for a cell phone when something big happens is now second nature, and physicists are tapping into that to get a wider picture of astrological phenomena. Last year, a 12,000-ton meteor burst into a fireball over the Russian city of Chelyabinsk and was caught on video by hundreds of people, many of whom went straight to YouTube. These videos have given scientists an unprecedented 360-degree view of the biggest meteor explosion in more than century, and can be used to determine the size, speed and trajectory of the space rock. Thanks to YouTubers in Chelyabinsk, it may be possible to predict the next major meteor impact.

    Source: NPR

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