Scientists in Switzerland have created ghosts in lab to disprove silly beliefs surrounding spirits.

What's the best way to prove ghost don't exist? Make them in a lab of course! Or, at least, create the sort of mind-and-body confusion that leads people to believe that spirits and apparitions are in the room with them.

 This is what a group of scientists from the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland have done, with the help of some mechanical apparatus known as a 'master-slave device'.

 This consist of two jointed mechanical arms that move in tandem, with volunteers controlling one in front of them like an extra-long finger while a second (located behind them) pokes them in the back.