Hail and mysterious experiences in Roissy: the crazy rumor launched by a deputy
The UMP deputy of Oise, Lucien Degauchy, implied Tuesday that the bad weather that hit France in early June were due to anti-hail experiments conducted by the Roissy-Charles de Gaulle airport. More details.
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"" More and more insistent rumors, emanating from people claiming to be very well informed, point to anti-hail experiments carried out at Roissy-Charles de Gaulle airport, with new techniques and products. This would cause the formation of hailstones which fell 80 km around Roissy "at the beginning of the month. An outing to which Secretary of State Frédéric Cuvillier has chosen to respond seriously." These are only rumors. Obviously we don't use nitrate cannons, "he said.
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http://www.planet.fr/societe-grele-et-m ... 29336.html
Anti-hail cannons have been used for a long time but their effectiveness is subject to precautions: http://fr.wikipedia.org/wiki/Canon_anti-gr%C3%AAle
"I can not find anyone in the scientific community who validates the concept of anti-hail guns ... It would actually be very difficult to separate its effect from what happens in the chaos of the storm."