Learn the “Dog Days of Summer”; why scientists did magic tricks for birds; and the smallest conceivable length of time.

What are the "Dog Days of Summer"? by Steffie Drucker

• Farmers' Almanac Staff. (2015, June 29). What Are the Dog Days of Summer? Farmers’ Almanac. https://www.farmersalmanac.com/why-are-they-called-dog-days-of-summer-21705
• Little, B. (2015, July 10). Why Do We Call Them the “Dog Days” of Summer? Animals; National Geographic. https://www.nationalgeographic.com/animals/article/150710-dog-days-summer-sirius-star-astronomy-weather-language?loggedin=true
• AstroPages | Precession. (2021). wwu.edu. https://www.wwu.edu/astro101/a101_precession.shtml

Scientists did magic tricks for birds to see how they perceive the world by Steffie Drucker

• Garcia-Pelegrin, E. (2021, June 2). We performed magic tricks on birds to see how they perceive the world. The Conversation. https://theconversation.com/we-performed-magic-tricks-on-birds-to-see-how-they-perceive-the-world-161772
• Garcia-Pelegrin, E., Schnell, A. K., Wilkins, C., & Clayton, N. S. (2021). Exploring the perceptual inabilities of Eurasian jays (Garrulus glandarius) using magic effects. Proceedings of the National Academy of Sciences, 118(24), e2026106118. https://doi.org/10.1073/pnas.2026106118
• Magic Tricks May Fool You, but These Birds Can See Through Them. (2021). The New York Times. https://www.nytimes.com/2021/06/01/science/birds-magic-tricks.html
• Timmer, J. (2021, June 4). Researchers perform magic tricks for birds, who are not amused. Ars Technica; Ars Technica. https://arstechnica.com/science/2021/06/researchers-perform-magic-tricks-for-birds-who-are-not-amused/
• Olkowicz, S., Kocourek, M., Lučan, R. K., Porteš, M., Fitch, W. T., Herculano-Houzel, S., & Němec, P. (2016). Birds have primate-like numbers of neurons in the forebrain. Proceedings of the National Academy of Sciences, 113(26), 7255–7260. https://doi.org/10.1073/pnas.1517131113
• Starr, M. (2018). Crows Can Build Compound Tools Out of Multiple Parts, And Are You Even Surprised. ScienceAlert. https://www.sciencealert.com/crows-are-so-smart-they-can-make-compound-tools-out-of-multiple-parts

Planck Time Is How Long It Takes Light To Travel One Planck Length by Joanie Faletto

• The Planck scale: relativity meets quantum mechanics meets gravity. (from Einstein Light). (2021). Unsw.edu.au. https://newt.phys.unsw.edu.au/einsteinlight/jw/module6_Planck.htm
• Williams, M. (2010, November 19). What is Planck Time? - Universe Today. Universe Today. https://www.universetoday.com/79418/planck-time/#ixzz2OhJ0gDig

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