A weekly programme that illuminates the mysteries and challenges the controversies behind the science that's changing our world.

2-Year U.S. Treasury Note Continuous Contract $102.887 0.039 0.04% 5-Year U.S. Treasury Note Continuous Contract $106.742 0.172 0.16% 10-Year U.S. Treasury Note Continuous Contract $109.500 0.297 ...

They kept as much as they could fit in. But food was one of the main ways you could defeat an army in a castle. If those inside ran out of food for too long, they would be so hungry they would ...