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    Science FridayWhat’s Happening On The Slippery Surface Of Ice?
    12 minEpisode 1213

    What’s Happening On The Slippery Surface Of Ice?

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    It’s a wintertime question that you may have had as you struggled down a frozen sidewalk, or strapped on some ice skates: Just why is ice slippery, anyway? It turns out the answer is somewhat complicated.

    Mechanical engineer Robert Carpick studies tribology, the science of surface interactions, from friction to wear to lubrication. He joins Host Ira Flatow to wrangle some new ideas about the slippery science of ice.

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    © Science Friday and WNYC StudiosLength 12 min19 January 2026Episode 1213ScienceFactsEducationalUSAEpisodic

    Agricultural Bees, China’s Energy Future, Frankenstein In Class. Feb 2, 2018, Part 1

    Agricultural Bees, China’s Energy Future, Frankenstein In Class. Feb 2, 2018, Part 1

    This is an episodic podcast, so you can listen to it in any order, but episode one is a great place to start.

    Listen to episode one here
    11+ScienceFactsEducationalUSAEpisodic19 January 2026© Science Friday and WNYC Studios

    It’s a wintertime question that you may have had as you struggled down a frozen sidewalk, or strapped on some ice skates: Just why is ice slippery, anyway? It turns out the answer is somewhat complicated.

    Mechanical engineer Robert Carpick studies tribology, the science of surface interactions, from friction to wear to lubrication. He joins Host Ira Flatow to wrangle some new ideas about the slippery science of ice.

    Guest: Dr. Robert Carpick is the John Henry Towne Professor in the department of mechanical engineering and applied mechanics at the University of Pennsylvania in Philadelphia.

    The transcript for this episode is available at sciencefriday.com.

    Subscribe to this podcast. Follow our show on Instagram, TikTok, Facebook, and Bluesky @scifri and sign up for our newsletters. Got a science question that’s keeping you up at night? Call us: 877-472-4374

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    © Science Friday and WNYC Studios |Original Episode URL. The content, artwork and advertising within this podcast is not owned or affiliated with Sound Carrot and remain the property of their respective owners.


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