We Still Don’t Know How Ice Skating Works

Curiosity Weekly

Warner Bros. Discovery

Science

4.6 • 964 Ratings

🗓️ 19 January 2021

⏱️ 12 minutes

🔗️ Recording | iTunes | RSS

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Summary

Learn about how social connection may be as basic of a human need as hunger; the ongoing scientific debate around how ice skating actually works; and the Uberman sleep cycle, a polyphasic sleep schedule that was allegedly used by Leonardo da Vinci and Nikola Tesla.

Social connection may be a "basic human need" like hunger by Kelsey Donk

Pattillo, A. (2020, November 23). Loneliness and hunger light up brain activity in similar ways. Inverse; Inverse. https://www.inverse.com/mind-body/brain-study-social-connection-basic-human-need
Tomova, L., Wang, K. L., Thompson, T., Matthews, G. A., Takahashi, A., Tye, K. M., & Saxe, R. (2020). Acute social isolation evokes midbrain craving responses similar to hunger. Nature Neuroscience, 23(12), 1597–1605. https://doi.org/10.1038/s41593-020-00742-z

There Is Still Hot Debate Around How Ice Skating Actually Works by Joanie Faletto

15 Surprising Facts About Figure Skating. (2016, November 15). Mentalfloss.com. https://www.mentalfloss.com/article/88660/15-surprising-facts-about-figure-skating
Ice cube experiment. (2014). Ice cube experiment. Abc.net.au. https://doi.org/http://abc.net.au/science/articles/2014/08/20/4067852.htm
Gilead Amit. (2020). Why is ice slippery? New Scientist. https://www.newscientist.com/article/mg22730371-000-why-is-ice-slippery/
staff, S. X. (2015, December 8). New theory describes ice’s slippery behavior. Phys.org; Phys.org. https://phys.org/news/2015-12-theory-ice-slippery-behavior.html
Persson, B. N. J. (2015). Ice friction: Role of non-uniform frictional heating and ice premelting. The Journal of Chemical Physics, 143(22), 224701. https://doi.org/10.1063/1.4936299

Leonardo da Vinci and Nikola Tesla Allegedly Followed the Uberman Sleep Cycle originally aired August 9, 2018: https://omny.fm/shows/curiosity-daily/antimatter-101-w-everyday-einstein-how-to-avoid-be

Pick up Tim Ferriss’ “The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman” on Amazon: https://amzn.to/395RWHt

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Transcript

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0:00.0	Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Curiosity.com.
0:06.3	I'm Cody Gough.
0:07.3	And I'm Ashley Hamer.
0:08.3	Today you learn about how social connection may be as basic of a human need as hunger, the ongoing scientific debate around how ice skating actually works,
0:17.0	and a unique approach to sleep, allegedly used by Leonardo da Vinci and Nicola Tesla.
0:23.0	Let's set us some curiosity.
0:25.0	We've been doing this old pandemic thing for a hot minute now, right?
0:29.0	It's been about a year.
0:30.0	And along with that, a lot of us are very socially isolated.
0:34.0	And today, we've got the science to explain why we're still craving social interaction.
0:39.0	And I mean, craving.
0:42.0	After all, loneliness can sometimes feel like a pit in your stomach.
0:45.0	Well, as it turns out, there's some evidence that social connection is a basic human need,
0:52.0	just like hunger. We crave social contact in almost the same way we
0:57.4	crave food. Here's how scientists figured this out. For a study published in Nature Neuroscience, researchers
1:05.1	asked 40 adults to each come to the lab for two separate 10-hour sessions. The
1:10.7	first session was like quarantine but worse.
1:14.0	The participants couldn't use their phones or view social media
1:19.0	or have face-to-face contact with other people.
1:22.9	Yikes.
1:24.3	And during the second trip to the lab,
1:26.0	the participants fasted.
	...

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