 
 <prompt> Wetin happun for di 10th year of di 1820s? Based on di previous 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 word "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 word "potential energy". Di law of conservation of energy also first talk for di early 19th century, and e dey apply to any system wey dey isolated. Dem argue for some years whether heat na physical substance, wey dem call caloric, or na just physical quantity, like momentum. For 1845 James Prescott Joule discover di link between mechanical work and how heat dey generate. 