metal

The Evangelical Lutheran Church of Finland started allowing "Metal Masses" some years ago. They are singing the traditional Lutheran songs of the Finnish Lutheran Church combined with metal and hard rock music: How could you make similar developments in Church Music take place in other...

For those more knowledgeable of the history of metallurgy, at what points in time could the Siemens-Martin process and the Open Hearth Furnace design have been invented before the time it was in OTL?

I̶ ̶h̶a̶d̶ ̶t̶h̶i̶s̶ ̶i̶d̶e̶a̶ ̶n̶o̶t̶ ̶t̶o̶o̶ ̶l̶o̶n̶g̶ ̶a̶g̶o̶,̶ ̶i̶n̶ ̶f̶a̶c̶t̶ ̶I̶ ̶t̶h̶o̶u̶g̶h̶t̶ ̶i̶t̶ ̶u̶p̶ ̶l̶i̶k̶e̶ ̶a̶ ̶m̶o̶n̶t̶h̶ ̶a̶g̶o̶ ̶s̶o̶ ̶I̶’̶l̶l̶ ̶l̶i̶n̶k̶ ̶y̶o̶u̶ ̶h̶e̶r̶e̶.̶ ̶S̶o̶ ̶w̶i̶t̶h̶ ̶t̶h̶a̶t̶ ̶s̶a̶i̶d̶ ̶h̶o̶w̶ ̶w̶o̶u̶l̶d̶ ̶t̶h̶e̶ ̶M̶e̶t̶a̶l̶ ̶S̶l̶u̶g̶ ̶t̶h̶i̶n̶g̶...