CLIMB AND CRANE (9.5.06)

A portable climbing wall can weigh between 4,000 and 5,000 pounds. This would be a piece of cake for a tower crane like that yellow one, which can lift over 39,000 pounds. To put this in perspective, if that kid in the blue shirt had an average 8-year-old's weight of 61.25 pounds, the crane would be able lift 636.73 rugrats just like him all at the same time.

If you've ever wanted to know how they erect a tower crane, click here.



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