Conversation

"The 80-ton support, known as the tabouret, or stool, was built in the town of Briey by carpenters employing centuries-old woodworking craftsmanship as well as modern-day methods such as 3-D modeling and laser measurement. In recent weeks, element by giant element, it was hoisted by cranes onto the cathedral’s gusty rooftop, a bravura ballet performed 180 feet in the air."
https://www.latimes.com/world-nation/story/2023-05-30/paris-notre-dame-spire-reconstruction-devastating-fire