Modeling and Questions about Radioactivity

1. a) Using things available in the classroom, construct a model of the Rutherford experiment.

2. On a whiteboard,

   a) Explain the difference between a detector and a probe.

   b) Explain the difference in half life between I-123 and Th-229. (Use yesterday's sheet).

   c) Contrast fission and fusion.

   d) How would you respond to an extremely obsessive person who wanted to avoid radiation at all costs.



 
 Ideas from the video:

 *Secrets of the universe
 - 27 km circumference (about 5,000 trips/second)
- Experiments, not just 'Theory'.
- 270 degrees (brrrrrrrrrrr).
 -Billions of dollars.
 - 5,000 pharmacists, plus computer staff, plus maintenance, housing, food workers, constructors.
 - Magnets 'Steer' particles.
 - 10,000 EB data/second.
- International collaboration particles.