1 시즌
26 삽화
편리한 도구속의 과학원리들 - Season 1 Episode 23 에피소드 23
Brenda goes to market, leaving Troy and Pilbeam in charge of her house. After Troy accidentally washes Brenda's prized wedding ring down the sink, Pilbeam enlists the help of Olive, Frank and the Inventor to dig up the road and find it in the water pipes before Brenda returns. Topics covered: pressure, water pressure, plungers, water flow, suction.