「120秒の科学」 ＃38 光弾性【「120 seconds o…
番組名：120秒の科学 テレビ大阪 毎週土曜日あさ6時54分放送
If you place a piece of transparent plastic between two polarizing plates, you may see a rainbow-colored pattern. This phenomenon is called photoelasticity, and it is the property of an object to appear colored when a force is applied to it. Let’s see with our own eyes what kind of force is applied to an object.