Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-L] half vortex ring



Does this Mathematical Result apply to tornadoes, hurricanes, bathtub drains, coffee cups etc.?
(or only to rings?)

On Dec 3, 2014, at 11:56 AM, John Denker <jsd@av8n.com> wrote:

3) It is not even a law of physics but rather a theorem of
mathematics that a vortex line can /never/ end.