Complex sentence: John Theophilus Desaguliers (pronounced day-za-güly-ay) (12 March 1683--29 February 1744) was a French-born British natural philosopher who was a member of the Royal Society of London beginning 29 July 1714.
Split into simpler sentences: John Theophilus Desaguliers (pronounced day-za-güly-ay) (12 March 1683--29 February 1744) was a natural philosopher born in France. He was a member of the Royal Society of London beginning 29 July 1714.