Physics proves horror movies get it wrong
Judy Skatssoon ABC Science Online Tuesday, 29 August 2006
You can put away the garlic. The principle of geometric progression has just debunked the myth of vampires .Who needs ghostbusters when you've got Newton, says a scientist who has used physics and maths to poke holes in the way Hollywood depicts ghosts and vampires.In a paper, published recently on the physics website arXiv, theoretical physicist Professor Costas Efthimiou of the University of Central Florida shows that when it comes to things supernatural, the figures just don't add up.For instance, the ability to walk through walls is a common talent of celluloid ghosts. But Newton's laws of physics suggest that if a ghost can walk it shouldn't be able to pass through walls, say Efthimiou and Cornell University postgraduate student Sohan Gandhi.Newton says a body at rest will remain at rest until it's acted on by an external force and for every action there is an equal but opposite reaction. So in order to walk, we apply a backward force on the floor with our feet, propelling the feet up and us forwards. But if a ghost can walk through walls, it must be "material-less", the authors argue, and incapable of exerting force. By the same token, a ghost that can walk through walls should also sink through the floor, and a ghost that can walk should be bouncing off the walls it tries to pass through ."The depiction of ghosts walking contradicts the precept that ghosts are material-less," they write. Sharp drops in temperature are also associated with the arrival of a ghost. But the paper says physics, which suggests that a sense of cold is correlated more to the rate at which heat is transferred from bodies to the environment than actual temperature, can provide an explanation. What do you mean
However does that explain this:
A SKELETON exhumed from a grave in
So as all hallows eve approaches…what do you think? Do vampires, ghosties and ghoulies exist?