Tom.G Science Advisor Gold Member Messages 5,661 Reaction score 4,509 Thread starter Dec 20, 2018 #1 A 3.5 minute video. In the construction industry that's one version of a Headache Ball. You dangle it from a crane and swing it at the building you are demolishing. Ouch!
A 3.5 minute video. In the construction industry that's one version of a Headache Ball. You dangle it from a crane and swing it at the building you are demolishing. Ouch!
jedishrfu Mentor Insights Author Messages 15,813 Reaction score 10,701 Dec 21, 2018 #2 Pretty cool and history too!