In 1418 the town fathers of Florence finally addressed a monumental problem they’d been ignoring for decades: the enormous hole in the roof of their ... of how to build a dome nearly 150 feet ...

If you build a very tall, solid steel dome, the heavy weight of the structure will push the walls outward, creating a force called tension. This may cause the dome to crack and collapse!

Thornton, lead executive with the company that runs and manages the Superdome, was there in 2005 and remains the top man ...

Construction of the world's largest telescope has reached its highest point with assembly of the roof's dome and large sliding doors that will shield the observatory. The European Southern ...