The roof of Notre-Dame Cathedral wasn’t just a roof. Sure, it kept the rain out. But what burned away in Paris in April was a technical marvel, the height—literally—of 12th- and 13th-century ...
A crane was used to help get 46-foot long oak logs onto the campus. But the bulk of the work will be done using axes and other medieval techniques. (WTOP/John Domen) It’s hard to dispute that the ...
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