Learn about the Luhn algorithm (the genius math behind credit card numbers) and how parents’ brains synchronize when they’re together. Then, play along at home and test your podcast knowledge with this month’s Curiosity Challenge trivia game.

The genius math behind credit card numbers by Cameron Duke

• Berry, N. (2014, January 8). How Credit Card Numbers Work. Gizmodo; Gizmodo. https://gizmodo.com/how-credit-card-numbers-work-1493331190
• Concerning Reality. (2018). The Secret Algorithm in Your Credit Card Number [YouTube Video]. In YouTube. https://www.youtube.com/watch?v=Yr9s5NjsVAo
• Juber Moulvi Abdul. (2018, April 24). Mathematics behind Credit/Debit card numbering. Medium. https://medium.com/@ma.juber/mathematics-behind-credit-debit-card-numbering-340bf68d27d2

Parents' brains sync when they're together by Steffie Drucker

• Presence of spouse alters how parents’ brains react to children stimuli, finds NTU Singapore study. (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-05/ntu-pos051220.php
• Azhari, A., Lim, M., Bizzego, A., Gabrieli, G., Bornstein, M. H., & Esposito, G. (2020). Physical presence of spouse enhances brain-to-brain synchrony in co-parenting couples. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-63596-2
• Vuchinich, S., Emery, R. E., & Cassidy, J. (1988). Family Members as Third Parties in Dyadic Family Conflict: Strategies, Alliances, and Outcomes. Child Development, 59(5), 1293–1302. JSTOR. https://doi.org/10.2307/1130492

Episodes referenced in Curiosity Challenge Trivia with Kyann

• Saturated Fat Could Kill Your Focus, Animals Have Regional Accents, and Rings Around Mars https://curiositydaily.com/saturated-fat-could-kill-your-focus-animals-have-regional-accents-and-rings-around-mars/
• The First Prescription Video Game, Solving the Mystery of Short-Term Memory, and Hummingbirds’ Extraordinary Vision https://curiositydaily.com/the-first-prescription-video-game-solving-the-mystery-of-short-term-memory-and-hummingbirds-extraordinary-vision/
• You Navigate with Your Nose, Busting 5 Summer Myths, and Using Horseshoe Crabs’ Blue Blood to Develop New Medicine https://curiositydaily.com/you-navigate-with-your-nose-busting-5-summer-myths-and-using-horseshoe-crabs-blue-blood-to-develop-new-medicine/

Subscribe to Curiosity Daily to learn something new every day with Cody Gough and Ashley Hamer. You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap “enable” here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY

Find episode transcript here: https://curiosity-daily-4e53644e.simplecast.com/episodes/parents-brains-sync-when-theyre-together-the-genius-math-behind-credit-card-numbers-and-julys-curiosity-challenge-trivia

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