http://www.impactlab.com/2008/08/29/hail-cannons-a-growing-industry/ A laboratory of the future human experience Mon, 22 Feb 2010 05:00:40 -0800 http://wordpress.org/?v=2.8.4 hourly 1 http://www.impactlab.com/2008/08/29/hail-cannons-a-growing-industry/comment-page-1/#comment-12868 Debbie paintball gun accessories Wed, 08 Jul 2009 21:04:40 +0000 http://www.impactlab.com/2008/08/29/hail-cannons-a-growing-industry/#comment-12868 I find it hard to believe something like this could work.. Sounds like sci-fi. I find it hard to believe something like this could work.. Sounds like sci-fi.

]]> http://www.impactlab.com/2008/08/29/hail-cannons-a-growing-industry/comment-page-1/#comment-10421 Hail Cannons - A Growing Industry « The Keelynet Blog Thu, 04 Sep 2008 07:05:58 +0000 http://www.impactlab.com/2008/08/29/hail-cannons-a-growing-industry/#comment-10421 [...] Posted by keelynet on September 4, 2008 The Chinese drop concrete dust into the air to clear the air from pollution. This could save a lot of money from crop loss due to hail. “While the history of hail cannons date back into the 18th century, the modern hail cannon has been developed extensively over the last 30 years with most development in the last 10 years. The protected area for an individual machine is said to be approximately a 500 meter radius with a lower level of effectiveness as distance from the device increases. The huge, cone-shaped machines click on automatically when a Doppler radar signal senses a storm is on the horizon. Within seconds, they emit a deafening, electronic blast, repeated every six seconds. As the sound waves rise from the cannon and ripple into the sky, they disrupt airborne water droplets poised to become hail stones, and instead cause the water to fall as rain or slush, the cannon’s manufacturers say. At $50,000 to $70,000 each, the cannons aren’t a cheap fix. But losses from hail storms can be even more costly. Hail storms don’t kill the fruit itself, but they take an economic toll. Blemished fruit usually fetches about 60% of an unmarked crop’s value, farmers said, and sometimes, pockmarked fruit cannot be sold at all. - Source [...] [...] Posted by keelynet on September 4, 2008 The Chinese drop concrete dust into the air to clear the air from pollution. This could save a lot of money from crop loss due to hail. “While the history of hail cannons date back into the 18th century, the modern hail cannon has been developed extensively over the last 30 years with most development in the last 10 years. The protected area for an individual machine is said to be approximately a 500 meter radius with a lower level of effectiveness as distance from the device increases. The huge, cone-shaped machines click on automatically when a Doppler radar signal senses a storm is on the horizon. Within seconds, they emit a deafening, electronic blast, repeated every six seconds. As the sound waves rise from the cannon and ripple into the sky, they disrupt airborne water droplets poised to become hail stones, and instead cause the water to fall as rain or slush, the cannon’s manufacturers say. At $50,000 to $70,000 each, the cannons aren’t a cheap fix. But losses from hail storms can be even more costly. Hail storms don’t kill the fruit itself, but they take an economic toll. Blemished fruit usually fetches about 60% of an unmarked crop’s value, farmers said, and sometimes, pockmarked fruit cannot be sold at all. – Source [...]

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