A beautiful little Stirling engine :-)
Lewis Latimer, 1882. Latimer was a son of a former slave, born in 1848. In 1863 he lied about his age so that he could enlist in Union Navy during the Civil War. After the war, he moved to Boston where he learned drafting, and one of his assignments was to draw the technical figures for Alexander Graham Bell’s telephone patents. In 1885 he was hired by Thomas Edison, and received several patents for improvements in electrical lighting and refrigeration systems. In 1918 he was named an Edison Pioneer, the only African American who was bestowed with that honor.