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Apr 23, 2018 at 23:35 vote accept Anthony X
Apr 23, 2018 at 9:25 answer added Chris Johns timeline score: 3
Apr 22, 2018 at 22:40 comment added Solar Mike Would you think there may have been problems with the tubes within tubes at 1200 Deg C? Perhaps this was a solution that enabled the materials to withstand the high temperatures as it was for a short time...
Apr 22, 2018 at 21:50 history asked Anthony X CC BY-SA 3.0