 
 <prompt> Wetin happun for di 8th year of di 1800s? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: In 1807, Thomas Young fit possibly be di first persin wey use di term "energy" instead of vis viva, for im modern sense. Gustave-Gaspard Coriolis describe "kinetic energy" for 1829 for im modern sense, and for 1853, William Rankine come up with di term "potential energy". Di law of conservation of energy also first talk for di early 19th century, and e dey apply to any isolated system. Dem argue for some years whether heat na physical substance, wey dem call caloric, or e fit be just physical quantity, like momentum. For 1845 James Prescott Joule discover di link between mechanical work and di generation of heat. 