When Pigs Fly: Can it be done with magnetism?

Christopher Benjamin TARLING

Abstract


A pig is capable of levitating in stable equilibrium under a sufficiently strong applied magnetic field. A model based on the relationship between magnetic force and gravity, when the net force is equal to zero, was used to determine the strength of a magnetic field when applied in one direction needed for levitation. For an average adult pig (0.75 m in height) this equates to a minimum magnetic field of 32.4 T. Whilst possible, it does not equate to natural flight.


Full Text:

PDF

References


Geim, A. (1998) Everyone's Magnetism. Physics Today, 51(9), pp 36-39. DOI: 10.1063/1.882437

Berry, M.V. & Geim, A.K. (1997) Of flying frogs and levitrons. European Journal of Physics, 18, pp 307–313. DOI: 10.1088/0143-0807/18/4/012

cacyz (2007) Diamagnetic levitation. YouTube. Available at:

https://youtu.be/m-Al7GAnH8Q?t=16s [Accessed 17th April 2018]

Lutz, J. & Dürer, A, (2009). Sus_scrofa_domestica.jpg Wikemedia Commons. Available at: https://commons.wikimedia.org/wiki/File:Sus_scrofa_avionica.png [Accessed 17th April 2018]

Tipler, P.A. & Mosca, G.P. (2003) Physics for scientists and engineers. New York: W.H. Freeman.

Earnshaw, S. (1842). On the nature of the molecular forces which regulate the constitution of the luminiferous ether. Transactions of the Cambridge Philosophical Society, 7, pp 97–112.

Kaye, G.W.C. & Laby, T.H. (1973). Tables of Physical and Chemical Constants. London: Longman.

Alderson, R. (1994). Rare Breeds. Laurence King Publishing. ISBN 1-85669-052-0.

National High Magnetic field Laboratory (2016) Meet the 45 Tesla Hybrid Magnet. Available at: https://nationalmaglab.org/about/around-the-lab/meet-the-magnets/meet-the-45-tesla-hybrid-magnet [Accessed 17th April 2018]

Hays, A.G., Schär, M. & Kelle, S. (2009) Clinical Applications for Cardiovascular Magnetic Resonance Imaging at 3 Tesla. Current Cardiology Reviews, 5(3), pp 237–242. DOI: 10.2174/157340309788970351

Schenck, J.F. (2000) Safety of Strong, Static Magnetic Fields. Journal of Magnetic Resonance Imaging, 12, pp 2–19. DOI: 10.1002/1522-2586(200007)12:1<2::AID-JMRI2>3.0.CO;2-V

Formica, D. & Silvestri, S. (2004). Biological effects of exposure to magnetic resonance imaging: an overview. Biomedical Engineering Online. 3:11. DOI: 10.1186/1475-925X-3-11


Refbacks

  • There are currently no refbacks.
We use both functional and performance cookies to improve visitor experience. Continue browsing if you are happy to accept cookies. Please see our Privacy Policy for more information.
OK