group+one

In 1857, he put some ash on the floor, and than he swinged a pendulum to move it.


To recreate this experiment at school, we couldn't use a metallic pendolum like Faucault, so we used a plastic bottle with a hole on the bottom. We needed too:
 * Fine white sand
 * Plastic bottle
 * String nail
 * Sticky tape
 * Large sheet
 * Funnel

At first, we had to made a hole on the bottom of the bottle, after, we filled the bottle with the sand, but before, we closed the hole with the sticky tape. We hung a string on a bar, in the gym, and we hung the bottle on the string. After, we removed the sticky tape and we made the bottle swing, so we saw that the sand came out of the bottle. We waited 15 minutes, and we saw the effects of the experiment on the sheet!



We had two problems: at first, the sand wasn't dry because it rained and the plastic bottle was wet, so, we dried it with an hairdryer.