tv/ movies: Born Jan 8, 1935, He starred in this movie: Viva Las Vegas - 1964?

Questions

By what name do we usually refer to radio detection and ranging?

What was King Ethelred IIs nickname?

Where is the 2,000 Guineas run?

The rediscovery of whose piano rags made ragtime music popular again in the second half of the century?

By what name do we know the slender glass tube used for transferring or measuring out known volumes of liquids?