Science of fun.
Tomorrow the Newcastle Mela will offer traditional dance, contemporary Asian acts, arts and crafts stalls as well as a team of "physics buskers".
A team from the Institute of Physics (IOP) will be at the Newcastle Mela in Exhibition Park on Sunday and Monday.
There will be physics demonstrations using things that can be found at home.
Alasdair Wilson, secretary of the local branch of the IOP, said, "Last year at the Newcastle Mela the busking team got around 3,000 people involved in the tricks. This year we're expecting the response to be even more enthusiastic."
The tricks are also available online at www.physics.org