Завершите предложение соответствующей формой причастия I.
Образец: Having given a promise he couldn't fail us. (дав, после того как он дал; to give - давать).
____________ the law, now known as Joule's law of electric heating, James Joule became famous not only in Britain but throughout the whole world. (сформулировав; to formulate - формулировать)