Zoos Have Their Own Dating Apps, Why Grease Is Hard to Clean Off Plastic, and You Don’t Have to Be Married to Be Happy
Curiosity Weekly
Warner Bros. Discovery
4.6 • 964 Ratings
🗓️ 21 August 2020
⏱️ 12 minutes
🧾️ Download transcript
Summary
Learn about why it’s harder to clean grease off of plastic than glass; how zoos use their own version of dating apps for breeding programs; and why science says you don’t have to be married to be happy.
Why is it harder to clean grease off of plastic than glass? by Ashley Hamer (Listener question from Lili)
- Saig, A. (2012, May 17). Why does soap easily remove fats from metalware and glassware but not from plastic? Davidson Institute of Science Education; Weizmann Institute of Science. https://davidson.weizmann.ac.il/en/online/askexpert/chemistry/why-does-soap-easily-remove-fats-metalware-and-glassware-not-plastic-tom
- Lipids. (2020). Dcccd.edu. https://dlc.dcccd.edu/biology1-3/lipids
- Clean My Space. (2013). Cleaning Plastic Containers: How to Clean Plastic Food Storage Items Fast & Easy (Clean My Space) [YouTube Video]. In YouTube. https://www.youtube.com/watch?v=RQKei50JCNQ
Zoos Use Their Own Versions of Dating Apps for Breeding Programs by Reuben Westmaas
- Wright, R. (2018, February 12). There’s a Matchmaking Site for Gorillas, Too. The New Yorker; The New Yorker. https://www.newyorker.com/news/news-desk/theres-a-dating-site-for-gorillas-too
- Stahl, L. (2018, May 13). Matchmaking for zoo animals. Cbsnews.com. https://www.cbsnews.com/news/matchmaking-for-zoo-animals/
You don't have to be married to be happy by Kelsey Donk
- When it comes to happiness, what’s love got to do with it? (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-07/msu-wic072320.php
- Loved and lost or never loved at all? Lifelong marital histories and their links with subjective well-being. (2020). The Journal of Positive Psychology. https://www.tandfonline.com/doi/full/10.1080/17439760.2020.1791946?journalCode=rpos20
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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 |
| 0:04.7 | Curiosity.com. I'm Cody goth, and I'm Ashley Hamer. Today we'll answer a |
| 0:09.0 | listener question about why it's harder to clean grease off of plastic than glass. |
| 0:13.7 | Then you'll learn about how zoos use their own version of dating apps |
| 0:17.4 | for breeding programs. |
| 0:19.1 | And why science says you don't have to be married to be happy. |
| 0:22.8 | That's satisfy some curiosity. |
| 0:25.2 | We got a listener question from Lily who asks, |
| 0:28.0 | why is it harder to get rid of grease and oil |
| 0:30.0 | from plastic containers than glass ones? |
| 0:32.5 | Great question, Lily. |
| 0:34.6 | Considering how many dishes many of us have been doing in lockdown, |
| 0:38.0 | I think a lot of people know this pain. |
| 0:40.6 | You can hand wash mac and cheese leftovers off a glass container no problem, but a plastic one? |
| 0:46.0 | It's basically going to wear that meal like a badge of honor through the next several dishloads. |
| 0:51.0 | This all comes down to chemistry. |
| 0:54.4 | Grease and oil are lipids, which are mostly made up of long chains of carbon |
| 0:59.9 | atoms with hydrogen atoms hanging off of them. |
| 1:02.8 | Those are called hydrocarbon chains. |
| 1:05.6 | Hydrocarbon chains are non-polar, |
| 1:07.9 | which means their charge is balanced |
| 1:10.0 | and they're not pulled in any particular direction. |
... |
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