Physics

CONSTRUCCIÓ D'UN CALIDOSCOPI

Una de les activitats proposades en Optics és la construcció d'un instrument òptic com és un calidoscopi.
El seu muntatge permet aprofundir en els materials empleats en el laboratori de física com ara els miralls, filtres... i a l'hora aprofundir en el fenòmen físic de la reflexió.
El guió empreat en aquesta sessió és el que es mostra a continuació:




 
EXPERIMENT: Construction of an optical instrument:
                                                               
                                                  The kaleidoscope.

         The kaleidoscope was a popular toy at XIX century. It was invented by David Brewsted at 1817. He was a Scottish physic who was interested in optics.
        In these instrument the light bounce and generate images of images.
          The students will build their kalidoscope:
        -The kalidoscope is formed by three rectandular, plain mirrors joint for the large side and formed an angle of 60º.
        -The joint mirrors are put inside of a roll of 13 cm (the same large of the mirrors).
        -Put a top of card with a hole in the middel to see inside the kalidoscope.
        -The other top is made of transparent material. It has to allow pass the light in and you can see the little coloured papers inside.
         -If you round the kalidoscope, the papers move and because of the reflection, you can see different forms.
         -When the instrument is finished. The students can paint it outside with watercolors.





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