Misc: In a church what is a galilee?

Questions

In what year was the first continuous stitch sewing machine invented?

Who was the first person to make the first realistic application of solar energy using parabolic solar reflector to drive caloric engine on steam boiler?

In what year did John Ericsson make the first realistic application of solar energy using parabolic solar reflector to drive caloric engine on steam boiler?

Last names of the two men who invented spectrum analysis?

In what year did Kirchhoff & Bunsen invent spectrum analysis?