What scientist was born on today's date?

August 21

William Kelly (Invention)
Birthday 1811: Pittsburgh, Pennsylvania, USA
William Kelley owned land containing iron ore where he worked a Cobb furnace. He also had factories for making sugar-boiling kettles where pig iron was converted to wrought iron. Attempting to make the converter process more economical he developed a way of removing excess carbon by burning it out of molten iron with an air blast. He obtained a patent for this process in 1857.

Daily excerpts are taken from Explorit's "Book of Science Days"
366 events - one for each day of the year are automatically sequenced in this location.