Rain aborted the use of flying disk flight distances as the mathematical models practical laboratory. At 11:25 I made the call to switch from flying disks to pendulums. The laboratory is a straightforward laboratory, but the relationship between the length of the pendulum and the period is a square root relationship. The complication is that except for the data point (0 centimeters, 0 seconds), the points tend to appear to be roughly linear to the untrained eye. The lengths would have to exceed 265 centimeters.

Stevenson and Ursula set up their pendulum.

Emmy Rose times, Pamela Edgar swings the pendulum, and Correy Abraham handles changes in length of the pendulum.

Bryan Wichep, Heron Susaia, and Stephanie Usiel measure the length of a pendulum.

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