Emily Mayhew and Louise McMenemy interacting with guests at the Royal Institution of Great Britain's Family Fun Day.

Emily Mayhew interacting with guests at the Royal Institution of Great Britain's Family Fun Day.

Colouring table at the Royal Institution of Great Britain's Family Fun Day.

Louise McMenemy interacting with guests at the Royal Institution of Great Britain's Family Fun Day.

Prosthetics display table at the Royal Institution of Great Britain's Family Fun Day.