Give two reason why computer models/simulations are preferred to conventional methods of
planning and implementing projects. The conventional method.

Answer:

- May be dangerous to carry out, for example, nuclear tests.
- May be too expensive to build.
- May require an extensive time scale; for example, a real experiment may take
over 200 years.
- Would be two wasteful on materials.
- May provide mechanisms for changing the speed of an experiment so that the experimenter can
follow the progress. The simulation method allows for corrections to be easily made if an
experiment fails.

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