Hail cannon in an aged castle in Banska Stiavnica, Slovakia Throughout the Middle Ages, men and women in Europe utilized to ring church bells and hearth cannons to test to stop hail, and the next damage to crops. Up-to-date variations of this tactic are available as modern-day hail cannons. Cloud https://thornton10875.wikienlightenment.com/7071200/5_simple_techniques_for_roof