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편리한 도구속의 과학원리들 - Season 1 Episode 14 에피소드 14
Whilst working for the Inventor, Troy experiences several phenomenons due to the way light behaves, including a rainbow. Meanwhile, the Inventor has to contend with the loss of his piggy bank, leaving him penniless with several broken glass trophies to pay for. Topics covered: light, refraction, reflection, rainbows, mirrors, light rays.