The time keeping in the Olympics need extreme accuracy when measuring the difference between the first place winner and the other athletes. Precision and accuracy are very important to make sure the times are correct.
Bill explains how we measure time and mentions some of the tools we use to measure it. He notes that time measurements, such as days, months, and years, are based on astronomical events and uses a motion machine to illustrate the Earth's revolution around the Sun and the Moon's revolution around the Earth.
When an important package is passed on to Homer, he delivers it to Mr. Burns, the sender of the package. Mr. Burns then releases a disappointing booby trap; he is not well-versed in the metric system.