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Dog Days of Summer, Magic Tricks for Birds, Planck Time

11 min • 26 juli 2021

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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Dog Days of Summer, Magic Tricks for Birds, Planck Time

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