【電球E26】26ミリという規格。不自然な寸法と工学の関係。
Light bulbs. Why is the diameter of the metal screw at their base standardized worldwide to the seemingly arbitrary number "26 millimeters (E26 standard)"? This video explores that history. ～～～～～～～～～～ ▼Chapters 0:00 A 100-Year-Old Fossil Lurking in Everyday Life 2:53 Light that Vanishes Darkness and the Demon King of Business 5:28 Kerosene Can Lids and the Obsession with Monopolies 8:01 The Tower of Babel of Standards (The Consumer's Nightmare) 10:25 Why "26 Millimeters"? (The Ruthless Judgment of Physical Laws) 14:32 Path Dependence (The Endless 19th-Century Curse) 17:35 A Fossil on Your Room's Ceiling (Ending) ～～～～～～～～～～ This video is produced in accordance with YouTube's policies. #lightbulb #E26 #Edison #physics #standards #microhistory #historicaldocumentary #adulteducation #trivia #ergonomics
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「なぜ1週間は7日なのか？宇宙の法則を無視した人類最大の『人工概念』。」
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なぜコンセントのプラグの刃には穴が開いているのか？
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