Weatherwatch: discredited but still popular, enthusiasts keep faith in hail cannon

Invented by an Austrian winegrower in the 1890s, hail cannon are used in an attempt at cloudbustingMysterious booms shaking the small town of Hammonton in New Jersey in December were traced to a backyard attempt at cloudbusting.Construction worker Rob Butkowski built a device resembling a giant horn to fire shockwaves into the sky, aiming to prevent hail damaging his vines. Continue reading...