This video purports to show that the time between the first "roof knocking" strike and the real thing is 51 seconds.
Hint - watch the clouds at around 57/58 seconds. These guys really need to invest in some decent video editing software. It's only the cost of a couple of rockets, and would probably aid their cause more.
Hint - watch the clouds at around 57/58 seconds. These guys really need to invest in some decent video editing software. It's only the cost of a couple of rockets, and would probably aid their cause more.