6760, Math 21a, Fall 2009
Exhibits page Math 21a 2009, Multivariable Calculus
Vortex rings
Course head: Oliver Knill
Office: SciCtr 434
Email: knill@math.harvard.edu
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Source: BBC.co.uk | With 200 miles per hour, the gas leaves this air gun. A vortex ring forms. The gun has been built by Jem Stansfield. It "huffs and puffs" away houses of straw, sticks and bricks. This youtube movie shows a longer version. |
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Source | More fun with vortex rings: this movie shows a vortex ring collision. |
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Source: Youtube | A vortex ring generated at the burning man festival in 2008. |