Activities 2012

  • We con the brain.
    This was a fully interactive workshop with several optical illusions and paradoxes of perception such as the one you see in the figure below. The public could find out the reason for several optical illusions and paradoxes of perception. Geometric enigma, scientists who disappear, dragons chasing you with their eyes, 3D holograms and amazing spinning tops.
  • Depending on the hemisphere of the brain that you are using, it will seem to you that the dancer rotates clockwise or away.

    When you are watching her rotate in one direction, concentrate on one foot and imagine it rotating in the opposite direction. Can you see that the dancer changes direction?.

“Shepard Effect”(auditory illusion). This is a scale of “pips” which is always the same but, every time you re-play it, it seems to grow indefinitely into higher tones. Try it.
  • Hydrogen: is it the fuel of the future?
    The public could see how a scientist generated hydrogen(H2) in a very easy way and how this hydrogen released a lot of energy that could be used, for example, to run a car engine. We discussed about the need to control the generation of this gas to prevent fatal accidents such as the Hindenburg disaster(in the picture). Hindenburg was a luxurious and huge blimp that used H2 as a lifting gas and that was used as a means of transport. It went up in flames with 97 people on board in 1937. We discussed the reason for this accident and the way it can be prevented through a reasonable release of the energy from the H2. The public could appreciate the problem of storing H2 as a challenge in terms of sustainable energy. We also show them a hydraulic motor.

  • The neuroscience of magic. How we con our brain.
    The attendees themselves leaded a surprising game. Because our brain sometimes makes us believe things that are not what they seem. The public enjoyed mathemagic and neuromagic experiments that made them think. All this led by scientists of the University of Girona and young students who have stepped into this world.

  • Providing Energy with things from home.
    The attendees were able to light a bulb using natural materials from home such as a lemon or a potato. They could also make a battery of a pencil sharpener and a pencil. Do you know how and why?


  • Photosynthesis: can we control it?
    The publicsee saw how we could imitate plants and use sunlight to turn water into a fuel substitute for petroleum, which is polluting and emits CO2 into the atmosphere.


  • Magic colours?
    There are different ways of changing colours: not always white and red will give you pink. Is that magic?


  • Chocolate! Why it is so special?
    The public played with chocolate and understood why it is
    so special.




  • Drawing Contest: How does a scientist look like?


Miquel Duran and Josep Duran (Chemistry and Magic) performed different experiments and demonstrations.