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PANTHEON
When Roman Emperor Hadrian decided to
build a monument to reflect the power of his
empire, he built a dome -- but...
dome's size and weight, Hadrian's engineers
had to find ways to lighten the heavy
structure.




They scooped out 140 waff...
Measurements:

   Foundation: 24’ thick at base and steps to
   21’ at ground level.
   Rotunda: concrete, 20’ thick; 142’...
THE END
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Pantheon

  1. 1. PANTHEON When Roman Emperor Hadrian decided to build a monument to reflect the power of his empire, he built a dome -- but not just any dome. Hadrian constructed a building out of bricks and concrete with a dome that was bigger and more extraordinary than anything anyone had ever seen before. The enormous building, called the Pantheon, was built as a temple to all the Roman gods almost 2,000 years ago. Pantheon is a Greek word meaning "to honour all Gods”. It still exists today, almost entirely in its original form. The Pantheon is remarkable for its size, its construction, and its design. The enormous dome stretches 142 feet in diameter; that's the same as the distance from the Statue of Liberty's sandals to her torch. Given the
  2. 2. dome's size and weight, Hadrian's engineers had to find ways to lighten the heavy structure. They scooped out 140 waffle-like depressions, called coffers, in five rows around the dome's base to eliminate some masonry and reduce the dome's weight. They also carved an opening, called an oculus, at the top of the dome, which reduced some mass and created a daily light show for which the Pantheon is famous. The oculus, or "eye" of the dome, is 27 feet wide - - five teenagers could stretch across the hole. At its base, the dome is 23 feet thick, but only two feet thick at the rim of the oculus The result was an impossibly huge dome; one that would remain the world's largest for 1,300 years.
  3. 3. Measurements: Foundation: 24’ thick at base and steps to 21’ at ground level. Rotunda: concrete, 20’ thick; 142’ diameter. Oculus: concrete: 7.5’ thick; 27’ diameter. Interior Columns: 3’ diameter, 29’ tall topped with a Corinthian capital of 4’ totalling 32’ 9" tall, 25 tons each. Portico: 16 granite columns 39’ tall, 5’ diameter, 60 tons each.
  4. 4. THE END

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