Gallery · 20. June 2013 ScopeDome's lower rotation ring Thirty two bolts, cast in concrete, will hold the lower rotation ring in place. The uppermost row of blocks will be filled with concrete. tagPlaceholderTags: observatory, 2013-1Eng
Thirty two bolts, cast in concrete, will hold the lower rotation ring in place. The uppermost row of blocks will be filled with concrete.
