It is risky to clean the windows of Santiago Office on 18th floor of 21-story building. This picture shows a window cleaner going down from the upper floor with only one life rope wrapped around his waist, wiping the windows.

It is risky to clean the windows of Santiago Office on 18th floor of 21-story building. This picture shows a window cleaner going down from the upper floor with only one life rope wrapped around his waist, wiping the windows.

This news is based on the press release from Chalmers University of Technology.
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