What kind of stone was used for the construction of the Panthenon's dome in Rome?

marble
sandstone
granite
pumice
The porous light stone was used in the concrete of the dome to reduce its weight. Sci­en­tists es­ti­mat­ed that, if normal weight concrete had been used through­out, the stresses in the arch would have been some 80% greater. The same tech­nique was for the ceilings of the Colos­se­um.

Answers distribution

marble
sandstone
granite
pumice
answers
flagGermany
10%
35%
0%
55%
20
flagthe United States
0%
35%
21%
42%
14
flagIndia
25%
8%
25%
41%
12
flagPoland
18%
32%
14%
33%
1052
flagRussia
6%
31%
12%
31%
16
flagthe United Kingdom
39%
13%
21%
26%
23

Gender

men31%
women27%
marble
21%
13%
sandstone
31%
41%
granite
16%
17%
pumice
31%
28%

Details

Author: globalquiz.org
Illustration: steve p2008
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