Talk:Hail cannon

message: The long nozzle is designed to expand the high pressure gas in the combustion chamber down to atmospheric pressure and emerge first in the form of a thin blast shock wave followed by a slower moving, but massive vortex ring of spinning propellant gasses that expands in diameter with flight time. The spinning gas in the vortex ring is the whistling sound heard as it flies away from the gun. If a battery of these guns were positioned around a farm and rapid fire actually succeeded in disrupting hail, then the turbulence of the vortex rings moving through the atmosphere should be examined as the reason since other investigators discount shock waves. To see and hear a blast shock and a vortex in flight go to http://www.youtube.com/watch?v=NbAQcxmXeIk Luceyg (talk) 04:51, 23 May 2013 (UTC)
thread_title:  Operating principles 

message: It appears that most of the text from this article is taken directly from the following URL which predates the creation of this article:
http://www.hailcannon.com/how.html
This would indicate either copyright infringement or that the original creator of this article is also the author of http://www.hailcannon.com/how.html but either way the situation should be clarified. —The preceding unsigned comment was added by 59.167.126.220 (talk) 08:00, 2 February 2007 (UTC)
replies: text: The article was pretty much created July 5, 2006. On July 20 I added some text about the viability of hail cannons that I think I can vouch for -- I linked my sources in as an external link ().  The edits since then have been largely administrivia.    I can't speak for the initial blocks of text. --Mdwyer 20:39, 11 April 2007 (UTC)

text: The first version of the website appears to have been created on July 6th, 2006 (one day after the creation of this article): http://web.archive.org/web/*/http://www.hailcannon.com/how.html  However, the archive.org date is when their spider first crawled and archived the page, not the first day that the article was published.  Therefore, I would presume that the website predates this article.  It appears that Dr. Blofeld copied the text verbatim without citation.  I will leave a message on Dr. Blofeld's talk page to request his attention on the matter. FerrousCathode (talk) 15:24, 25 June 2009 (UTC)
thread_title:  Possibly copyright infringement? 

message: ? It seems to me that placing a bell underneath the wide end of an inverted 'hail cannon' would cause upward sound waves to be directed back into the bellfry. It seems that would enhance the bells functionality, by reducing the sound lost in the sky. That makes as much sense, or more, than other explainations ive heard for the purpose of a steeple. ? Fencelizard (talk) 22:09, 8 December 2014 (UTC)
thread_title:  Note: similarity to church steeple? 

message: Hello fellow Wikipedians,
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thread_title:  External links modified