References
Corcoran A.J. and Conner W.E. (2014) 'Bats jamming bats: Food competition through sonar interference' Science, vol. 346, no. 6210, pp. 745–747.
Humpback Whales Songs Sounds Vocalizations (2008) Uploaded by Sookietex for the National Park Service, U.S. Department of the Interior. [Online]. Available at https://archive.org/ details/ HumpbackWhalesSongsSoundsVocalizations [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] (Accessed 19 June 2019).
Interference and feet (n.d.) Dr Mirjam S. Glessner, Adventures in Oceanography and Teaching. [Online]. Available at http://mirjamglessmer.com/ experiments/ experiment-interference-of-waves/ (Accessed 19 June 2019).
Longitudinal and transverse waves (2012) Uploaded to YouTube by Animations for Physics and Astronomy, the Physics and Astronomy Animation Project at Penn State University. Available at https://www.youtube.com/ watch?v=7cDAYFTXq3E (Accessed 19 June 2019).
Wave interference and beat frequency (2016) Open-source, interactive, educational demonstrations provided by Academo. [Online]. Available at: https://academo.org/ demos/ wave-interference-beat-frequency/ (Accessed 19 June 2019).
Wave on a string (2017) PhET Interactive Simulations provided by University of Colorado, Boulder. [Online]. Available at: https://phet.colorado.edu/ en/ simulation/ wave-on-a-string (Accessed 19 June 2019).