Magic is one of the oldest forms of entertainment, and much of its enchantment is said to rely on the audience not knowing how the tricks are done.

However, while magicians swear to keep their secrets forever when they embark on their profession they are happy to share the tricks of their trade in certain circumstances, a new study shows.

Illusionists who took part in major new research thought it was OK to expose their own techniques, but not those invented by others, and also believe it is acceptable to reveal the secrets behind tricks invented by someone who has since died.

They didn’t think it was right to share the workings of a magic trick just to gain public visibility, but thought it was acceptable to share their secrets if they were being paid for their knowledge.

Exposing secrets was seen as more acceptable when it was done to promote good, such as enhancing wellbeing, undertaking scientific research or protecting the public from fraud.

And magicians rated exposing magic tricks frequently found in commercial magic sets for children to be significantly less acceptable than those bought in dedicated magic shops that cater to adults.

The study, published in The Journal of Performance Magic Research, was led by Dr Gustav Kuhn , from the University of Plymouth's School of Psychology, and Professor Brian Rappert from the University of Exeter.

They are both members of The Magic Circle and while Professor Rappert uses entertainment magic to convey how disclosure and concealment figure in everyday life and international relations, Dr Kuhn’s work seeks to unravel the science behind magic.

In the study, they highlighted that while magician societies enforce strict rules to safeguard their secrets, the internet has fundamentally changed the ease by which tricks are being exposed.

As such, they said, the research aims to demonstrate some of the complex considerations magicians face and what they truly think about exposing secrets.