[Edit] 
Answer
I do not know but the roof of the Opera House has a lining of polysterene in it and this protects the sound for escaping and also prevents an echo.
First answer by ID3272303874. Last edit by ID3272303874. Question popularity: 13 [recommend question]
|
Also see on Answers.com Research your answer: |
Can you answer other
questions about cruising and cruise ships?
Answers.com > Wiki Answers > Categories > Travel > Cruises > How many tonnes of steel in opera house?
Our contributors said this page should be displayed for the questions below. (Where do these come from ) |
| If any of these are not a genuine rephrasing of the question, please help out and edit these alternates. |
What opera house is made fromcom? Is the opera house made out of polysterene? How many tonnes of steel is used in the opera house?
