Wrecking ball
heavy steel ball used for demolishing buildings
A wrecking ball is a heavy steel ball used for demolishing large buildings. It is usually hung from a crane. A crane operator swings the ball back and forth like a pendulum. It works best tearing down masonry buildings. Early round shapes would sometimes get stuck in walls and roofs.[1] The modern wrecking ball is pear-shaped to avoid this problem.[1] It is not clear when the wrecking ball was invented. They were commonly in use by 1936 in New York City.[2] Today they are no longer used as much in demolition. The wrecking ball has largely been replaced by the more efficient High reach excavator.[3] "Think of a long-reach excavator as a demolition scalpel, compared to the mallet of a wrecking ball".[3]
A wrecking ball used to destroy an old building
References
change- ↑ 1.0 1.1 "What is a Wrecking Ball?". WiseGEEK/Conjecture Corporation. Retrieved 14 August 2015.
- ↑ Jeff Byles, Rubble: Unearthing the History of Demolition (New York: Three Rivers Press, 2006), p. 40
- ↑ 3.0 3.1 "High-Reach Excavators Increase Demolition Accuracy". Elder Demolition. Archived from the original on 5 March 2016. Retrieved 14 August 2015.
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