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Wednesday, January 18, 2012

Looking for the gravity center in a soda can

Another trick from the video. A razão pela qual a lata fica "em pé" é exactamente a mesma da dada no caso dos garfos, é uma questão de centro de gravidade.

What we need:
  • 1 soda can,
  • water.
How to:
  1. Fill 1/3 of the can with water;
  2. Place the can on the table with a 40º degrees inclination; 
  3. Try to balance it, you will be able to balance the can in a "falling position", if the can starts to rotate over the bottom let it rotate until it stops.
What happens?
There is a position where the can stands in a strange equilibrium.

Exactly for the same reason the forks found the balance here.
Try this with other recipients and/or cans.

Et voilá!


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