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"Filippo Brunelleschi"  Sort by

Great Cathedral Mystery

   2014    Art
The dome that crowns Florence's great cathedral of Santa Maria del Fiore, the Duomo, is a masterpiece of Renaissance ingenuity and an enduring source of mystery. Still the largest masonry dome on earth, it is taller than the Statue of Liberty and weighs as much as an average cruise ship. Historians and engineers have long debated how its architect, Filippo Brunelleschi, kept the dome perfectly aligned and symmetrical as the sides rose and converged toward the center." More than four million bricks could collapse at any moment -- and we still don't understand how Brunelleschi prevented it. To test the latest theories, a team of U.S. bricklayers will help build an experimental "mini-Duomo" using period tools and techniques.
Blood of the Vikings
Blood of the Vikings

   2001    History
Oceans
Oceans

   2009    Nature
Walking with Cavemen
Walking with Cavemen

   2003    History
Tales by Light Season 2
Tales by Light Season 2

   2017    Nature
Monster we met
Monster we met

   2006    Science
Atom
Atom

   2007    Science
Life in the Freezer
Life in the Freezer

   1993    Nature