continues to rain ... and our observations must be postponed.
Then we begin a computer work. Remember that you can stop and save the work already done by following the instructions that appear at the end of each question. Follow the link
of virtual planetarium and go!
will find questions like:
- If the Earth is round, you know, explain why the land we live on is flat?
- Now imagine that there is a tunnel that passes through all the Earth passing through its center. You find yourself near one end of the tunnel and you're holding an object that you can drop dentro l’apertura. Ora lasci cadere l'oggetto. Quale percorso seguirà ?
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