【50Hzと60Hz】なぜ日本の電気は東西で違うのか？インフラ分断と家電の歴史

This video explores the history behind the difference in microwave frequencies: 50Hz in Eastern Japan and 60Hz in Western Japan. ～～～～～～～～～～ ▼Chapters 0:00 Introduction 2:05 The Magic Box Created by Chance 5:12 Why Do Bento Boxes "Rotate"? 8:02 The "Invisible Wall" Dividing Japan 12:28 The History Packed Inside the Box ～～～～～～～～～～ This video is produced in accordance with YouTube's policies. #50Hz60Hz #Infrastructure #MicroHistory #Microwave #HistoricalDocumentary