Summary: Mark Ormrod gives a colourful insight into medieval petitions; Christopher Lewis and Alison Boyle discuss two of the 17th century's greatest astronomers: Galileo and Thomas Harriot.
Summary: Mark Ormrod gives a colourful insight into medieval petitions; Christopher Lewis and Alison Boyle discuss two of the 17th century's greatest astronomers: Galileo and Thomas Harriot.