Children's television presenter Johnny Ball is to visit Swindon's Steam Museum, in Kemble Drive, to present the annual Christmas Family Lecture.

The topic is The Living History of Science. Johnny is well known for his passion for maths, science and technology. It starts at 6pm on Sat-urday, December 6.

Tickets cost £6 for adults and £4 for children. Call 01793 466637 for more information.