Do Single-A Batteries Exist?

Curiosity Weekly

Warner Bros. Discovery

Science

4.6 • 964 Ratings

🗓️ 18 December 2020

⏱️ 14 minutes

🔗️ Recording | iTunes | RSS

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Summary

Learn about whether there’s such a thing as “single A” batteries; 5 surprising ways volunteering improves your physical health; and how duckbill dinosaurs may have crossed an ocean to reach Africa.

Single-A batteries? by Ashley Hamer (Listener question from Julien and his son Phelix)

Boolish, M., DeJager, J., O’Beirne, T., Runkles, R. (2002, November 21). A Brief History of the Standardization of Portable Cells and Batteries in the United States. American National Standards Institute Accredited Standards Committee C18 on Portable Cells and Batteries. https://wayback.archive-it.org/all/20120802183313/http://www.swe.com/admin/FILES/ANSI%20Battery%20Standardization%20History.pdf
A Look at Cell Formats and How to Build a Good Battery – Battery University. (2013). BatteryUniversity.com. https://batteryuniversity.com/learn/article/a_look_at_cell_formats_and_how_to_build_a_good_battery
Linden, D., Reddy, T.B. (2002). Handbook of Batteries, Third Edition. McGraw Hill. http://dl.icdst.org/pdfs/files/b334382400c223631bea924f87b0a1ba.pdf
Lithium Batteries in All Sizes & Brand Names. (2020). Megabatteries.com. https://www.megabatteries.com/?cat1=31

5 Surprising Ways Volunteering Improves Your Physical Health by Joanie Faletto

Poulin, Michael J. "Volunteering predicts health among those who value others: Two national studies." Health Psychology 33.2 (2014): 120. https://www.researchgate.net/profile/Michael_Poulin/publication/236137739_Volunteering_Predicts_Health_Among_Those_Who_Value_Others_Two_National_Studies/links/00b495179591abfff5000000.pdf
Schroeder, D. A., Graziano, W. G., Piliavin, J. A., & Siegl, E. (2015). Health and Well-being Consequences of Formal Volunteering. The Oxford Handbook of Prosocial Behavior. https://doi.org/10.1093/oxfordhb/9780195399813.013.024
Schreier, H. M. C., Schonert-Reichl, K. A., & Chen, E. (2013). Effect of Volunteering on Risk Factors for Cardiovascular Disease in Adolescents. JAMA Pediatrics, 167(4), 327. https://doi.org/10.1001/jamapediatrics.2013.1100
Okun, M. A., Yeung, E. W., & Brown, S. (2013). Volunteering by older adults and risk of mortality: A meta-analysis. Psychology and Aging, 28(2), 564–577. https://doi.org/10.1037/a0031519
Brown, W. M., Consedine, N.S., Magai, C. (2005) "Altruism relates to health in an ethnically diverse sample of older adults." The Journals of Gerontology Series B: Psychological Sciences and Social Sciences 60.3 : P143-P152. https://academic.oup.com/psychsocgerontology/article/60/3/P143/559390
Renter, E. (2015). What Generosity Does to Your Brain and Life Expectancy. US News & World Report; U.S. News & World Report. https://health.usnews.com/health-news/health-wellness/articles/2015/05/01/what-generosity-does-to-your-brain-and-life-expectancy

These duckbill dinos may have crossed an ocean to reach Africa by author Steffie Drucker

McRae, M. (2020, November 10). The fossil of a duckbill dinosaur has been found on the “wrong” continent. Livescience.com; Live Science. https://www.livescience.com/duckbill-dinosaur-fossil-found-wrong-continent.html
Goodyer, J., & Science, P. (2020, November 5). Duckbilled dinosaurs crossed oceans to reach Africa, fossil reveals. BBC Science Focus Magazine; BBC Science Focus Magazine. https://www.sciencefocus.com/news/duckbilled-dinosaurs-crossed-oceans-to-reach-africa-fossil-reveals/
The first duckbill dinosaur fossil from Africa hints at how dinosaurs once crossed oceans. (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-11/uob-tfd110420.php
Longrich, Nicholas R., et al. "The first duckbill dinosaur (Hadrosauridae: Lambeosaurinae) from Africa and the role of oceanic dispersal in dinosaur biogeography." Cretaceous Research (2020): 104678. https://doi.org/10.1016/j.cretres.2020.104678.
Cretaceous Period | Definition, Climate, Dinosaurs, & Map | Britannica. (2020). In Encyclopædia Britannica. https://www.britannica.com/science/Cretaceous-Period
Episode about monkeys on rafts: https://www.curiositydaily.com/why-we-get-warning-fatigue-prehistoric-monkeys-crossed-the-atlantic-on-rafts-and-why-new-lovebirds-feel-so-familiar/

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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
0:04.9	Curiosity.com. I'm Cody Gough. And I'm Ashley Hamer. Today you learn about five
0:09.4	surprising ways volunteering improves your physical health and how Duck Bill dinosaurs may have crossed an
0:15.8	ocean to reach Africa. But first we'll answer a listener question about Single A batteries.
0:21.3	Let's satisfy some curiosity. We got a listener question from
0:25.2	Julian and his son Felix. Julian writes, my son just asked me if there's such a
0:29.9	thing as a single A battery. For that matter, where did we get all these battery names? a from everywhere and there are so, so many. The long answer may break your brain.
0:47.2	So in the early 20th century, battery technology was changing fast. New materials, new sizes, new voltages, new uses. People
0:56.9	soon realize that it would be a good idea to start standardizing things.
1:00.4	In 1928, the organization that would become the American National Standards Institute, or Anse,
1:07.0	formed a committee of industry and government representatives to lay out battery standards that included a simple easy to remember
1:14.4	naming convention based on the letters of the alphabet. So A was the
1:18.4	smallest battery, B was a little bigger, C was a little bigger than that, and on and on up through J. Seems simple enough, right?
1:26.8	Except that battery technology isn't simple. It kept on changing, and people kept on revising those standards
1:34.3	not only in the United States but in governments and companies all over the world
1:38.4	mostly without consulting one another
1:40.8	and electronics kept getting smaller so batteries kept getting smaller too.
1:45.0	In 1947, the double A battery was introduced.
1:49.0	In 1959, we got the AAA battery.
1:52.0	In the 1990s, got a AAA battery. In the 1990s we even got a quadruple a battery.
1:57.2	This couldn't last so by 1999 Ancy had completely revised their naming system.
2:03.0	Ancy now calls the AA battery the Ancy 15.
	...

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