... 20.07.2010 . ... Credit Copyright: Chris Kotsiopoulos Explanation: Have you ever watched a lightning storm in awe? ... What is known is that charges slowly separate in some clouds causing rapid electrical discharges ( lightning ), but how electrical charges get separated in clouds remains a topic of much research. ... Lightning bolts are common in clouds during rainstorms, and on average 6,000 lightning bolts occur between clouds and the Earth every minute. ... Publications with keywords: lightning ...