The concept of a chain reaction can be made more vivid by using the same piles of pennies (or other objects) you used in HE1. Gather about $3.00 worth of pennies. Each pile will represent the number of neutrons produced as the chain reaction continues.a. Assume each fission creates 3 neutrons, as shown in figure 19.13. On the first pile put one penny to indicate the neutron that initiated the fission.b. On the next pile put 3 ? 1, or 3 pennies, to indicate the 3 neutrons created in the fission.c. On the next pile put 3 ? 3, or 9 pennies, since each of the 3 neutrons produced in the first reaction will create 3 more neutrons in the next set of reactions.d. How many pennies do you need in the next pile? And in subsequent piles?e. How many piles do you need to have more than 100 pennies in a pile?f. How many piles would you need to have more than 1000 pennies per pile (follow the pattern and calculate this since it is unlikely you have found that many pennies)??

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