Revealing the Magic of Skele-Gro

Leah Ashley, Chris Ringrose, Robbie Roe


This paper investigates the extent to which Skele-Gro increases the rate of normal bone growth by comparing the regrowth of Harry’s arm bones to the rate of regeneration of bone in a fracture. The amount of energy provided by Skele-Gro is also determined. We find that the rate of bone growth is at least 90 times greater than that of a fracture repair and that the amount of energy that Skele-Gro supplies to do this is a minimum of 133,050 kcal. The lower estimate of Skele-Gro’s power output is therefore 6443 W.


Book; Film; Biology; Skeletal growth/repair; Metabolism; Harry Potter

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Rowling, J. (1998). Harry Potter and the Chamber of Secrets. London: Bloomsbury, chapters 10-11.

Warner Bros. Pictures. (2002) Harry Potter and the Chamber of Secrets. [film] Director: Chris Columbus.

Wikipedia. (2016). List of bones of the human skeleton. [online] Available at: [Accessed 09/03/2016].

Kalfas, I. (2001). Principles of bone healing. Neurosurgical FOCUS, 10(4), pp.1-4.

American College of Foot and Ankle Surgeons (2016) Bone Healing. [online] Available at: [Accessed 05/03/2016].

Smith, T. (1987). Prevention of Complications in Orthopedic Surgery Secondary to Nutritional Depletion. Clinical Orthopaedics and Related Research, &NA;(222), pp.91-97.

NHS Choices (2015a) How many calories does a child of 7-10 need? - Health questions - NHS Choices. [online] Available at: [Accessed 09/03/2016].

NHS Choices (2015b) How many calories do teenagers need? - Health questions - NHS Choices. [online] Available at: [Accessed 09/03/2016].

Hospital for Special Surgery. (2000). Nutrition for Healing. [online] Available at: [Accessed 9 Mar. 2016].

Beaudette, S. M. (2015). The Average Weight and Height for a 12-Year-Old. LIVESTRONG.COM. [online] Available at: [Accessed 09/03/2016].

Gallagher, P. (2013). Revealed: The science behind Usain Bolt power burst used to the 100m. [online] The Independent. Available at: [Accessed 17/03/2016].


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