English clockmaker John Harrison revolutionized long distance seafaring in the 18th century, solving the problem of calculating longitude at sea and devising tools that helped sailors navigate with ...

This marine chronometer was given to President Ronald Reagan by singer Frank Sinatra. The quest for the Longitude Prize spurred a wave of innovation and ingenuity in the scientific community.

Today's Google Doodle celebrates the birthday of John Harrison, who invented the first accurate way to measure longitude. Before 1735, if you wanted to sail across the ocean, you could only guess at ...

British clockmaker John Harrison helped make marine navigation safer for sailors around the world and his 325th birthday is celebrated in today's Google Doodle. Harrison was born in Foulby, Yorkshire, ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This instrument is a specialized ...

Welcome to Watches You Should Know, a column highlighting important or little-known watches with interesting backstories and unexpected influence. This week: the Harrison H4 Marine Chronometer “Sea ...

Have you ever heard of John Harrison? Harrison saw a problem and had a driving vision on how to correct it. In the late 1600s, more than 200 years after Columbus reached the New World, there were many ...