Why do elephants have big ear flaps?

@article{Narasimhan2008WhyDE,
  title={Why do elephants have big ear flaps?},
  author={A. Narasimhan},
  journal={Resonance},
  year={2008},
  volume={13},
  pages={638-647}
}
  • A. Narasimhan
  • Published 2008
  • Mathematics
  • Resonance
  • In this essay we shall try to answer the question in the title with some geometry and heat transfer thrown in for effect. For doing so, as the joke goes, allow me to assume the elephant as a sphere. The reason will be apparent soon. 

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