https://blog.gongquiz.com/2021/05/04/%ec%97%b4%ea%b8%b0%ec%a0%84%eb%a0%a5%ec%97%90-%ec%9d%98%ed%95%9c-%ec%a0%9c%eb%b0%b1%ed%9a%a8%ea%b3%bcseebeck-effect%eb%a5%bc-%ec%9d%b4%ec%9a%a9%ed%95%98%ec%97%ac-%ec%98%a8%eb%8f%84%eb%a5%bc/