Typically, any object that has been around longer than we have can give us a feeling of warmth. For example, scuffed-up wooden chairs, ceramics that have a small crack, and black-and-white photos ...

This price reflects trading activity during the overnight session on the Blue Ocean ATS, available 8 PM to 4 AM ET, Sunday through Thursday, when regular markets are closed. The above button links to ...

Activity 1 – Order the surfaces – How much friction do they produce? Activity 2 – Moving things quiz Activity 3 – Solve this problem Activity 4 – Conduct an investigation We need forces to make things ...

See all the objects from the Radio 4 series A History of the World in 100 Objects. Click on any link to find out more about an object, zoom in on the image and listen again or download the programme.