Keeping time in Gold Country at the Jackson Rusty Rosebud
The Rusty Rosebud Antique Boutique in Jackson sells classic antique pendulum clocks. Ideally, the brass pendulum takes precisely two seconds to swing to-and-fro.
Pat, the proprietress, is aware her clocks are not compensated for temperature changes. The average shop temperature for the entire month of January is a brisk 18° C. Her best clock, the Metronome, keeps perfect time for the entire month of January.
However, the Metronome loses a total of two minutes during the month of July. Given her climate consciousness, Pat does not air condition the Rusty Rosebud.
The brass pendulum rod has a coefficient of linear thermal expansion α.
Given α = 7.467311836 x 10 − 6 m/m° C, find the average store temperature for July.
A correct answer sent to [email protected] could win a Tucker’s Gift Card.
Last week’s winner was Doug Bailey with Area = 41626 square units.
(Use of AI is strictly forbidden.)
Jeff Smith is a former Math teacher and a retired US Navy Lieutenant Commander. Reach him at [email protected].


