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She earned an income teaching embroidery & math. By 1884 she had her 1st patent for a line divider. She began evening classes on electricity with Prof Ayrton, trailblazer in engineering education at Finsbury Technical College. They married in 1885 & began collaborating on physics experiments. She began her own studies of the electric arc, solving the pressing problem of why they would flicker & hiss. Denied the right to present her paper to the 3/n