Along with a famous friend, he discovered that when a gas is allowed to expand without performing external work, the temperature of that gas falls.
Despite his numerous successes, this man incorrectly calculated the age of the earth to be 100 million years using geophysical means, for he didn't know about radioactivity. He became wealthy through his invention of a receiver for the submarine telegraph. Along with a famous friend, he discovered that when a gas is allowed to expand without performing external work, the temperature of that gas falls. After his ennoblement, he would gain the barony of Largs. FTP, name this man, who collaborated with James Prescott Joule, best remembered for formulating the absolute scale of temperature that bears his name.
Despite his numerous successes, this man incorrectly calculated the age of the earth to be 100 million years using geophysical means, for he didn't know about radioactivity.
Lord Kelvin or Baron Kelvin of Largs or William Thomson