Experiments for the Cloud Chamber

I thought I would open this up to anyone who may have ideas. If you haven't already, read my thread about what a "Cloud Chamber" is.  The nice thing about this project is that after it's built we can continuously use it for experimentation. It will be most efficient to do as many experiments at a time as we can (as we'll have to buy dry ice each time).

Deposit ideas here, they can be an actual hypothesis, or as simple as "I wonder what would happen if we...?"





So far I have: 

• Observe the effect of magnetic fields on the cosmic ray nuclei
• Observe what materials the cosmic rays can penetrate (metal, wood, plastic, rubber)
• use Feynman diagrams to decode the tracks made by the rays, telling us what type of specific particle is decaying along the way.