Hail storm created indoors, destroys roofs for test
Scientists create the thousands of hailstones out of a mixture of seltzer water and tap water and shoot them out of canons at up to 76 mph.
http://www.wbir.com/video/2180687968001/1/Hail-storm-created-indoors-destroys-roofs-for-test
http://bc_gvpc.edgesuite.net/img/963482463001/201302/2230/963482463001_2180668506001_961896998-151-1361466652197.jpg?pubId=963482463001
Hail storm created indoors, destroys roofs for test
Scientists create the thousands of hailstones out of a mixture of seltzer water and tap water and shoot them out of canons at up to 76 mph.
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