Original sentence: For the following five years, he practised as a self-employed horology conservator.He was appointed curator of horology in 1990 and became senior curator in 2004.In 1980 he was appointed senior horology conservation officer at the National Maritime Museum and in 1989 was presented the museum's Callender Award for his contribution to horological conservation.In his own time, he has also been a horological adviser to the National Trust of Great Britain and is currently also adviser to the Harris (Belmont) Charity and to Clockmakers' Museum.Jonathan Betts (born 29 January 1955) is the senior specialist in horology at the Royal Observatory (National Maritime Museum), Greenwich, a horological scholar and author, and an expert on the first marine chronometer created by John Harrison in the middle of the 18th century.The biography was published in 2006 by Oxford University Press under the title Time Restored: The Harrison Timekeepers and RT Gould, the Man Who Knew (Almost) Everything
Edited sentence: For the following five years, he practiced as a self-employed horology conservator.Gould, the Man Who Knew (Almost) Everything".He was appointed Curator of Horology in 1990 and became Senior Curator in 2004.In 1980 he was appointed Senior Horology Conservation Officer at the National Maritime Museum and in 1989 was presented the NMM's Callender Award for his contribution to horological conservation.In his own time, he has also been a horological adviser to the National Trust of Great Britain and is currently also adviser to the Harris (Berlmont) Charity and to Clockmakers' Museum.Jonathan Betts (born 29 January 1955) is the Senior Specialist in Horology at the Royal Observatory (National Maritime Museum), Greenwich, a sought-after horological scholar and author, and an expert on the first marine chronometer created by John Harrison in the middle of the 18th century.The biography was published in 2006 by Oxford University Press under the title "Time Restored: The Harrison Timekeepers and R