Gillyweed – Drowning with Gills?

Rowan Reynolds, Chris Ringrose

Abstract


In David Yates’ film adaptation of J. K. Rowling’s Harry Potter and the Goblet of Fire, Harry Potter passes the second Triwizard task by consuming Gillyweed. This Mediterranean plant allows him to breathe underwater by growing gills on his neck. The gills were approximated to be 60 cm2 in surface area, and using standard measurements for a boy of his age, Harry was estimated to need to process 443 litres of water per minute. This came to mean the water would have to flow at 2.46 m s-1 across his gills, far faster than he could inhale and exhale.


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References


Warner Bros. Pictures. (2005) Harry Potter and the Goblet of Fire. [film] Director: Mike Newell.

Jones, B. (2011) Oxygen – The Most Important Water Quality Parameter, Office of Water Quality 23.1, [Online]. Available at: http://www.indiana.edu/~clp/documents/water_column/Water_Col_V23N1.pdf [Accessed 17/03/2016]

Rodríguez, F. A. (2000) Maximal Oxygen Uptake and Cardiorespiratory Response to Maximal 400 m Free Swimming, Running and Cycling Tests in Competitive Swimmers, J. Sports Med Phys Fitness 40.2.

CDC (2009) Growth Charts - Clinical Growth Charts [Online]. Cdc.gov. Available at: http://www.cdc.gov/growthcharts/clinical_charts.htm [Accessed 17/03/2016].

Tang, J., Nicolle, A., Klettner, C., Pantelic, J., Wang, L., Suhaimi, A. et al. (2013) Airflow Dynamics of Human Jets: Sneezing and Breathing - Potential Sources of Infectious Aerosols. PLoS ONE. 2013;8(4):e59970.


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