「ãªãœè‡ªè»¢è»ŠãŒç™ºæ˜Žã•ã‚Œã‚‹æ™‚期ã¯ã“ã‚“ãªã«ã‚‚é…ã‹ã£ãŸã®ã‹ã€ã‚’エンジニアãŒè€ƒå¯Ÿby Jordan Sanchez 乗り物ã®æ´å²ã«ãŠã„ã¦ç¾ä»£ã®è‡ªè»¢è»Šã¯1800年代後åŠã€è’¸æ°—自動車ã®ç™ºæ˜Žå¾Œã«ç”Ÿã¾ã‚Œã¾ã—ãŸã€‚「自動車ã«æ¯”ã¹ã¦å˜ç´”ãªä»•çµ„ã¿ã®è‡ªè»¢è»Šã¯ã€ã‚‚ã£ã¨æ—©ã„時期ã«ç”Ÿã¾ã‚Œã¦ã„ã¦ã‚‚よã‹ã£ãŸã®ã§ã¯ï¼Ÿã€ã¨ã„ã†ç–‘å•ã«ã¤ã„ã¦ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®Jason Crawfordã•ã‚“ãŒè€ƒå¯Ÿã—ã¦ã„ã¾ã™ã€‚ Why did we wait so long for the bicycle? https://rootsofprogress.org/why-did-we-wait-so-long-for-the-bicycle Crawfordã•ã‚“ã¯ä¸Šè¨˜ã®ç–‘å•ã‚’Twitterã«ã¤ã¶ã‚„ã„ãŸã¨ã“ã‚ã€å‘¨å›²ã®äººã€…ã‹ã‚‰ã•ã¾ã–ã¾ãªä»®èª¬ã‚’å—ã‘å–ã‚‹ã“ã¨ã«ãªã‚Šã¾ã—ãŸã€‚ Why wasn't the bicycle invented until like the late 1800s?— Jason Crawford (@jason
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