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An Airflow case that has ACTUAL AIRFLOW!

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  • Hand-washing Steps Using the WHO Technique

    1:26

    Proper hand hygiene is the most important thing you can do to prevent the spread of germs and to protect yourself and others from illnesses. When not done carefully, germs on the fingertips, palms and thumbs, and between fingers, are often missed. This video demonstrates the World Health Organization (WHO) technique for hand-washing. Watch the video to be sure you are washing your hands thoroughly.

    Learn more about the Johns Hopkins Hospital Department of Hospital Epidemiology and Infection Control: hopkinsmedicine.org/heic

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  • Darkness Visible: Shedding New Light on Black Holes

    1:46:44

    Black holes may hold the key to understanding the most fundamental truths of the universe, but how do you see something that’s, well, black? Astronomers think they have the answer. Thanks to a global array of radio telescopes that turn the Earth into a giant receiver, we may soon have the first picture of the event horizon of Sagittarius A*, the black hole at the center of the Milky Way galaxy. And, with the power of math, scientists are going even further, using equations to “look” inside black holes, peering at the central singularity where general relativity and quantum mechanics collide. Join Brian Greene and other leading physicists and astronomers on a journey to make darkness visible.

    Find out more about the program and the participants:

    MODERATOR: Brian Greene
    PARTICIPANTS: Shep Doeleman, Andrea Ghez, Vicky Kalogera, Cumrun Vafa

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    The Big Ideas Series is supported in part by the John Templeton Foundation.

    Filmed live at the 2018 World Science Festival

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