He was the head consultant on the first submarine Atlantic cable, and became rich after patenting a 
He was the head consultant on the first submarine Atlantic cable, and became rich after patenting a mirror galvanometer that sped up telegraphs. Inventor of a tide predictor, a harmonic analyzer, and a siphon recorder, his home in Glasgow was the fi  rst in Scotland to be lit electrically. FTP, name this British scientist, who helped establish the second law of thermodynamics, but is best known for his 1848 proposal of the absolute temperature scale named after him.
He was the head consultant on the first submarine Atlantic cable, and became rich after patenting a mirror galvanometer that sped up telegraphs.
Baron Kelvin (accept William Thomson)